I have a Note 10+. I was trying to take a picture while recording a a video and noticed the button isn't there anymore. What happened?
Have you tried going to any software updates, or possibly disabled it in settings
When you are recording a video, do you see a button on the right side of the center record button?
No. It's not there. I don't see and I usually see it, but it's disappeared.
@userXDlpVr7iV5 Have you tried force stopping and clearing the cache on the stock camera app?
Here is the button referenced by @SamsungAdam . It appears when you start recording.