What happend

You probably tried to update Nobara via the CLI using dnf update.

This dosn’t run needed tools/commands after updating.

Fix

Restart the PC and select an older kernel.
Login and open the Konsole
List your dnf history using dnf history list
- This should give you a list of recently executed dnf commands
- Locate the entry dnf update (should be at/near the top)
Revert to the last working version using dnf history rollback <id>
- Replace <id> with the id of the entry before dnf update
Wait for dnf to rollback to that state
Reboot your system and boot into the lastest Kernel (now the one before the update)
Update your System using Update System or via nobara-updater cli in the CLI.