Thinkpad 530 (2013) Ubuntu 20.04
Admin user + 2 limited users, using the GUI
When switching from admin user to one of the other users, the admin password briefly flashes and can easily be read. This happens when one of the users has previously selected the "show password" (eye) icon in the password field.
I'm also experiencing the issue in this question: https://askubuntu.com/a/1056240/445044 (TL;DR - glimpses of another user's session are visible when coming out of hibernation)
I have done the switch to Wayland mentioned in this issue, which solved some other graphical glitchiness I was experiencing, but it didn't solve the above issues. I've scoured all my usual sources for solutions to this, but have not seen this exact problem. Any help is appreciated.
