This is still buggy. Every time there's a new ubuntu release of Thunderbird (now on 91.3.1) I have to repatch /usr/lib/thunderbird/thunderbird.sh and comment out "export MOZ_ENABLE_WAYLAND=1"
See https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/1932328 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1916469 Title: Apps don't use Wayland by default To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1916469/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs