Had this issue with Ubuntu 24.04. Turns out that I installed fuse which removed ubuntu-session. All is well till you reboot and cant get past the stop plymouth start gdm part of boot.
CTRL-ALT-F2 login sudo apt remove fuse sudo apt install ubuntu-session reboot If you do need fuse install fuse3 apt install fuse3
No clue why fuse2 is still available and is the de