I can log in to each of my accounts sequentially, but I cannot switch from one account to another while still being logged. There is no “Switch User” option in the user menu. The same applies to the lock screen, too.
This is probably a minor issue, but I am new to NixOS (21.05) and I don’t know what to do. So far, I like NixOS a lot, but this tiny problem keeps me from fully switching to NixOS.
I am thankful for any hints.