I upgraded to Ubuntu 21.10 and Anki simply shows a blank screen. When I start Anki from a terminal, I get this error message:
Qt info: Warning: Ignoring XDG_SESSION_TYPE=wayland on Gnome. Use QT_QPA_PLATFORM=wayland to run on Wayland anyway.
I tried setting this variable, I tried other variables that other posts encouraged me to try, I reinstalled, I tried logging out and back in without Wayland, I tried it all with and without hardware acceleration. What more can I try?