I run multiple operating systems on one drive and another stores the actual data, games, etc.
I had an eerily similar problem with the initial release of doom eternal and it's associated denuvo anti-cheat application. Which was silently fixed a month later.
At the time I believe a potential (but definitely not %100) workaround was to create a hard link to your installation from within the main installation drive.
I don't vouch to understand it, but somehow the boot chain from within the anti cheat system (in this case EAC) gets broken, as if it either did not like what it saw and shadowbanned you, or it simply got lost and did not load all the files correctly. Pile on resources that are destined to be loaded to the graphics card and RAM and it get's real technical real fast trying to authenticate another user's memory space.
One person said removing a stick of memory worked, another via a windows 11 update, removing hard drives, doing nothing at all and simply waiting, etc. Dumb as hell.
You can try to remove and change hardware, but it's a crapshoot, my game still won't boot. silence after the EAC splash flashes twice.