Thanks for taking the time to answer, I tried reinstalling Deo, the whole Oculus app and even (not just because of this) did a fresh windows installation, it still just opens and crashes right away.
This happens with the steam version as well, I'm afraid I dont remember when it started, at first I thought it was just a bad update, then I did the reinstalls and then forgot about it. After reinstalling windows I tried it again to the same result.
I just reinstalled on the oculus store again and now it says unexpected error OVR25027186 which it never did before but on steam it's still the same.
I got an old version of deo from the internet btw and that worked instantly...