I've been seeing this bug for at least a year (occurring with any number of applications that I run -- it does not seem specific to any particular thing). I came across this bug report today after wondering about possible workarounds. I can confirm that switching to Wayland as @rustyscottweber suggests seems to fix this problem on my machine. I am running Ubuntu 20.04.3 LTS.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1881941 Title: Ubuntu dock behaves crazy when hidden at the bottom of the screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell-extension-ubuntu-dock/+bug/1881941/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs