Hello, I have just enrolled for the One UI 6 Beta on my Galaxy S23, and upon first startup, I immediately noticed some bugs. This was to be expected, though, this is the first beta. I'd like Samsung to be aware of these and hope for them to be fixed in future builds.
4x1 smart suggestions widget, has 4x1 apps.
4x2 smart suggestions widget, has 4x3 apps. 
This stack widget has 2 widgets, smart suggestions, and clock widget. It shows the 2 dots that show that you are able to change the size of this stack.
However, dragging it won't do anything. You can't change the size, but it shows the size changers anyways.
Can't make it smaller or bigger, even though it shows that I am able to. 
The bottom part of the preview is glitched
The bottom part of the rounded corner overlay on notifications are bugged when swiping to dismiss them. 
Samsung Health in background activities tab.
This list is going to be long, so I've split them up into categories. I'll also attach some images for some of the bugs.
Media player isn't transparent and isn't the same color as the other widgets. 
Swiping on the lock screen camera shortcut while in landscape mode. The indicator doesn't scale properly when switching to landscape. 
Back swipe gesture is not needed on the home screen. This must be a bug, as it wasn't present on One UI 5.1.
The "cancel" option at the top is glitched. 
Swiping right on the bottom of the screen has a glitchy animation.
Camera shortcuts. It has the default One UI icon shape.
YouTube Music has circle icons for the shortcut.
Amazon doesn't have any background at all for their shortcuts.
Lock screen and always on display
- Swiping up from the very bottom of the screen to exit the quick panel menu on the lock screen causes visual glitching, and opens the "enter pin/password" menu when released
- Swiping to open the pin/password menu is slightly laggy
- Tapping the clock to open lock screen widgets is slow and bugged
- Media player widget looks inconsistent with the other lock screen widgets
- Exiting out of the lock screen widgets menu is sometimes buggy
- While the lock screen is in landscape mode, when swiping on the corner shortcuts, the black indicators aren't scaled properly and don't show their icons while swiping
- When in the lock screen customization menu, you are now able to move the clock around, however, saving the position is broken
- When changing the wallpaper, the fingerprint icon color won't change
- Saving the lock screen after customizing it is sometimes laggy
- When tapping on the power menu icon in the quick panel while on lock screen, the quick panel immediately closes and the power menu appears (there is no smooth transition between the two)
- Tapping and holding on the lock screen to open the customization menu is sometimes laggy
- The fade-in transition effect when turning the screen on is sometimes laggy
- When always on display is enabled, the transition between turning the screen on and off is sometimes laggy, especially when you wake the phone while the clock is moving
- When on the always on display, double tapping the clock and then swiping doesn't open the lock screen widgets menu anymore (did this get removed?)
- After double tapping the clock on the always on display to reveal the settings button, double tapping anywhere else won't wake the phone until the settings button disappears
- Opening the camera from the lock screen shortcut is sometimes slow
- When using the camera while the phone is locked, after tapping the image icon in the bottom left corner next to the shutter button, you are not able to swipe downwards to go back to the camera, you can only swipe down when the phone is unlocked, which is kind of annoying and inconsistent
- The transition for unlocking the phone is sometimes buggy
- UI is glitchy and sometimes laggy
- Touch inputs sometimes don't register
- Swiping up using gesture swipe navigation to go to the main home screen or open the recent apps menu has no bounce effect animation anymore
- Swiping to the left to access Google Discover/Samsung News is very laggy and can cause a lot of glitches
- Back swipe gesture is used even though it's not needed on the home screen
- Animation for opening apps is sometimes slow
- Animation for rotating the screen is sometimes slow and buggy
- Animation for opening the app drawer is buggy
- When dragging an app from the app drawer or adding a new widget to the home screen, the "cancel" option at the top is glitched
- Animation for opening the Finder is slow
- Animation for opening and quickly closing an app or a folder is buggy
- Animation for opening the recent apps menu is laggy, especially when using swipe gestures
- Rotation animation in the recent apps menu isn't as smooth as before
- Animation for closing an app is stuttery
- Animation for removing/uninstalling an app is gone and can even glitch sometimes
- Animation for dragging an app or widget is bugged
- Animation for placing an app or widget after dragging it is glitched
- Closing an app using swipe gestures will cause some touch interactions with the app, usually when you swipe or finger left or right while exiting the app, which causes the app to scroll in that direction. An example of this is when you swipe to exit an app while the keyboard is present, the keyboard swipe typing will be in use as you're swiping to exit the app. Another example is when you close an app such as Instagram, swiping to exit the app will cause it to go to from the app's home page to either the app's camera/messages page, all while the software's gesture animation is playing. This bug also causes the app drawer to be opened sometimes when using swipe gestures to open the recent apps menu, and sometimes causes the back swipe gesture to register a touch input on the screen
- Animation for swiping right on the navigation bar using swipe gestures to open your most recently used app is glitchy. This glitchiness is even worse when you have Google Discover/Samsung News enabled on the left of the home page
- Some widget open/exit animations are broken
- Animation for editing a stack widget is bugged and sometimes laggy
- Animation for exiting the stack widget edit menu is bugged
- Some elements of the UI are white even when dark mode is enabled, such as the stack widget edit menu and the quick panel
- Tapping and holding on an empty space in the home screen will sometimes glitch and bring you to the Google Discover/Samsung News toggle option instead of the home page you are currently on
- Animation for tapping and holding on a home page is buggy
- App splash screens aren't shown
- Some Samsung apps have been renamed to no longer have "Samsung" or "Galaxy" in their names on the home screen, which is nice, but some apps haven't been renamed yet, such as: Galaxy Wearable, Samsung Health, Samsung TV Plus, Samsung Health Monitor
- If an app's name is too long, it's name gets cut off
- Some app shortcuts icons are inconsistent. Some are the normal One UI squircle icon shape, but others, usually from third party apps, are circle shape, or have no background at all. I've found two apps with this issue: YouTube Music's app shortcut icon is circle shape, and Amazon's app shortcut icons have no background. It should force all icons to have the normal squircle shape to be consistent
- Samsung Wallet swipe shortcut is laggy sometimes
- When swiping up to open the Wallet shortcut while dark mode is enabled, the black background effect isn't fully black
- There is no option to open Samsung Wallet via double pressing the side key in the settings
- Camera app is sometimes slow
- Some widgets designs are inconsistent with each other
- Smart suggestions widget size doesn't look right, for example, a 4x2 smart suggestion widget has 4x3 (12) apps inside of it. In this case, I think it should have 4x2 (8) apps inside of the widget to be more consistent with the widget's size, similar to how it was before in One UI 5.1. See the image below to see what I mean
- Stack widget exit animation is broken
- Some widgets don't have animations, such as the smart suggestions widget and the new custom camera widget
- When tapping and holding on a stack widget to change its size, it shows that you are able to change the widget's size, but depending on what widgets are inside, you can't actually change the size of it
- In the add widgets menu, the smart suggestions widget preview image is glitched
Notifications and quick settings panel
- The rounded corner overlay is glitched when dismissing notifications
- When opening the quick panel using either two finger swipe or the new instant access feature, the animation will sometimes glitch. In my experience, this happens more often when you swipe too fast
- When opening the quick panel, you need to scroll down just a bit to be able to close it if you are either using button navigations, if the keyboard is present, or if you are in landscape mode. This may be different depending on the size of your phone's display
- Quick panel animation is kind of buggy
- Tapping and holding on some quick panel icons will take you to their settings page instead of opening a detailed page within the quick panel, which is kind of annoying
- The new quick panel isn't very friendly for one-handed use
- Some quick panel buttons can't be rearranged
- Exiting the notification/quick panel is sometimes glitchy
- Google will sometimes randomly trigger the microphone usage indicator (green dot), but nothing will show up on microphone usage logs in the security and privacy settings
- Not sure if this is a bug, but Samsung Health now shows up in the background activity indicator in the recent apps menu. It didn't show up there before in One UI 5.1, but now it shows there and is able to be stopped from the menu
- Startup time feels a bit slower
- Battery drains a bit faster than it did on One UI 5.1
Those are all of the bugs and inconsistencies that I found in One UI 6 Beta 1. This new version of One UI looks somewhat promising, but there are some changes that I have mixed feelings for. For me, personally, I would describe One UI 5.1 as "almost perfect". I hope One UI 6 takes that to the next level. New features are cool, but optimization is important.
Let's also add this one to the list as you can see in the attached pic when you open dialer there is an empty area on the bottom right. The icons need to be centered. 
I don't think so. That empty space is used for the delete key. That key should be dimmed when the number entry field is empty.
