Samsung galaxy s21 plus

I have been facing network issues, signal keeps dropping, and internet connection is not stable, I have to toggle airplane mode on and off multiple times for the signal to work. Does any one face similar issue, thus started after upgrading to android...

Unable to see a option to turn off shutter sound in camera app.

Update 3, screwed up the theme engine again. And animations are laggggy.Background is black in photos app.

Unable to lock apps using secure Folder. Even after adding apps, they are getting opened and there is no promt of password verification