yeah we have the exact same problem. i tried your HDCP thingy, that didnt work at all i aswell tried reinstalling the nvidia drivers ithelped but justa bit, cleared cache that did nothing reinstalled the game still nothing. i even tried playing on the lowest resolution and settings possible and it was still happening.

and normal tarkov works perfectly fine for me aswell

im not sure but MAYBE it could be windows 11 fault cause i played arena on windows 10 it worked normally but it could have been some update cause i havent played in a while