I have the same issue. It seems to happen after enemy ults with a stun component (e.g., Infernus, Lash, Abrams). If used immediately after enemy ult stun, screen will freeze and sometimes come back to normal after ult finishes, or will crash the game completely.
Laptop HMG Neo
AMD Ryzen 9 6900HX
Nvidia Geforce 3070Ti
Using DirectX (need to test Vulcan)