I have been having a lot of issues with my note 10+ after the stable release for once UI 2.0 (sprint release) 1/1/20.
My phone is very laggy and sluggish. The navigation gestures and bar are very unstable. In the app drawer when sliding back and forth through app drawer pages it's very glitchy and sluggish. This update does not seem like a very stable release in any means. Many apps won't load as well.
I was having some of this going on with my Verizon note 10+; swiping between screens & opening app drawer looked really glitchy. I downloaded the Nova launcher & that fixed the problem for me! I had already tried things like messing with animation speeds & wiping the cache partition, & I really didn't want to do a factory reset unless absolutely necessary. It occurred to me that maybe the One UI 2.0 just had some bugs so I gave Nova a shot, and everything is smooth again! It's a bit of a pain to get everything set back up the way I like on my home screens, but it beats feeling like my phone is fried. You might give it a try, at least until we get another update with some bug fixes!
I'm also having the same issues and some useful settings have been removed for no apparent reason. Aside from the setting problem my phone becomes blurry as if the Screen resolution was at 240p and it's laggy & sluggish as you said 🙇
Yeah, I don't know what to do. I've tried several different things. It's beyond me. It's actually got worse since I first posted this. My phone completely crashed earlier today. Half of my apps don't load correctly now and it won't keep a cellular connection. 😑