Can't get past the splash screen despite secure boot enabled

Last time I played was in november and everything worked perfectly then. I tried to get back into the game a couple of days ago but couldn't get past the splash screen despite trying nearly 15 different solutions like doing everything possible with the anticheat installer for example.

I decided to check my bios to confirm that secure boot really was enabled but when I tried to restart I started getting a secure boot violation message on startup so had to turn it off. 

Kinda sucks that I can't play a game I paid a lot of money for anymore

Windows 11 and steam btw