For me the update has been heaven sent. I know I'm in the Note forum but I saw the title and then your comment. I have the S20+ Unlocked and have hated it pretty much since day one. Unresponsive screen, slow to load apps, lost internet connection even on WiFi, features not working... on and on and on. The update changed all of that. The screen is snappier, possibly because of the new animations or just because. I don't know or care. Apps open like you would expect. I haven't noticed any lag with the internet. Haven't lost internet. Smart Lock is working. It really just feels like a different device. The only thing so far that I find more of annoyance than anything is the aspect ratio change in the folders. I went from 1 and 2 page folders to 2 and 3 page folders. I haven't found a solution to that yet. I kind of don't care for the volume slider being vertical now but I wouldn't call that an issue. The screen seems sharper too. That could be psychosomatic from the animations and the general change in my attitude about the device but it really feels like it just looks better.
All of that is why I clicked on this thread. I was hoping folks would be talking less about just getting the update and more about what they've noticed, liked or disliked about it.