Android 11 just landed here in the UK. After the installation One UI kept crashing whenever I tried to access any of my app folders. Tracked the fault to Samsung Good Lock, some of the apps in Good Lock won't work with Android 11 (updates to follow) so I uninstalled all the incompatible apps & this has solved the issue. The technical help department didn't know about this when I phoned them, so I solved it on my own. Hopefully the updates for Good Lock won't be long in coming through.
After 3.0 always wipe cache partion. This gets rid of any residule files. Another thing. since update to reboot phone into recovery mode I have to plug earphones in to reboot it. hopefully Samsung will fix this in next update.