I have a issue with the lock screen.
Aften sleep mode, it wakes up quite quick, but the password window is dead. it is not possible to write inn the password. So after waiting a couple of minutes, the screens goes black and opens up again. Then with a working active window for password input.
Not a biggie, but it slows down the process to start up the work after a coffee break.
I am using the new 21.04 version so could be a bug that are known and on the list.