I figured out what happened.
- Ctrl+Alt+FNUMKEY switches to a full-screen TTY session. @aronowski Dom root missing then returned, compromised system? (Please help) - #3 by aronowski
- Ctrl+Alt+Delete triggers a reboot in systemd. @unman Dom root missing then returned, compromised system? (Please help) - #5 by unman
- My system went into the emergency dracut shell because my disk did not unlock. Is this screen normal? (Entering emergency mode / dracut init-queue timeout)