Update to 15.6.1 went wrong, whats is the best way to get a working MacOS again?

The update to 15.6.1 went wrong.

MacOS boots, but the loading bar gets stuck at roughly 25%. Also the boot screen just shows MacOS, no efi boot, I thought it should? Not sure though. If i press space upon boot I see:

- MacOS

- Recovery 15.6.1 (dmg)

- BootKicker.efi

- Openshell.efi

- Reset NVRAM

I can get in to mac recovery. Does anybody know how I can restore this the best way? I don't have access to another Mac.

Macbook Pro 15 late 2013. OCLP 2.4.0

Thank you!