Running Ubuntu 22.04 LTS with Ubuntu Desktop on X11.
After setting dock (dash to dock extension) to auto-hide, it won't reappear if any app is full screen.
Turn off "require-pressure-to-show" in dconf settings for dock.
- Open dconf-editor and go to org > gnome > shell > exensions > dash-to-dock
- Scroll all the way to bottom and set Require-pressure-to-show to off
- Restart session (log out and back in)
branch_predictor. "auto-hide dock does not show up". Ask Ubuntu, 13 Sept 2022, https://askubuntu.com/a/1429076.