Screen orientation

[m1]

Since the last update, my screen on s21 reverts to portrait after a few minutes, particularly worrying when on sat nav!!! Also will flicker periodically. Perhaps you should call these changes rather than improvements 

[rogersdave77]

After every update you should wipe partition cache.... It clears any bug in the software
Here is my video on how to do it
https://youtu.be/T2HkEa94FRk

[GoanGeek]

I actually use my phone in portrait when using Google maps while driving. More easier.

[m1]

Even in portrait after a few minutes it minimises down to an inch square.

[GoanGeek]

I'm using the beta and always keep checking for updates on google and Samsung store.

Maybe try a wipe cache