My Note20 Ultra has started doing the same in the past 24 hours. I can tap an app and it will open it, however, I cannot get the delete/move app function to work as the things are fixed in position and cannot be deleted. I downloaded a couple of apps last night, however; I don't know if they have anything to do with it.
I ran the phone diagnostic *#0*# and its all showing as working, so I can only assume its a software issue. I have tried deleting the last apps downloaded without success.
Same here. Yesterday I had an Icon on my screen and it disappeared. The App is still there under settings but I can't move the Icon back to the screen where it used to reside. I can move all others, just not this one. Screens are not locked. Samsung S20FE