Textures flicker when Vulkan selected

When 3.19.1 came out, the game began to flicker with Vulkan selected, DirectX 12 had less FPS than usual, and DirectX 11 had stuttering, at least for my system. I tried everything to fix this with no success: completely reinstal Nvidia drivers, completely reinstal the game, clean shader cash, even migrated to Steam. Then 3.19.1b came out and all of a sudden everything started to work fine. And today the game is broken again.

To clrify:
- flickering happens when the game is in foreground, no matter the ingame settings (fullscreen, borderless, resolution, all the same effect)
- when the game is in background everything works fine, that's why there is no way to make a screenshot of this, only screen recording
- when i switch to DX12 perfomance is lower than usual (still acceptable though)
- when i switch to DX11 perfomance seems to be better than DX12, but constant stuttering occures
- previous patch fixed all those issues, today's patch reintroduced them

What i tried to fix the problem:
- remove drivers, restart system, reinstal drivers
- same as above, but tried different previous versions of the driver
- clean shader cashe
- completely reinstall the game
- uninstall the game and install through Steam client
None of the above helped with the problem.

Here you can watch what happens with Vulkan selected:
https://www.youtube.com/watch?v=oTKKHxCI1Js

Other games work completely fine.

My PC specs are:
MSI RTX 3070
Intel Core i7 8700K at 4.3 GHz
32Gb RAM
Game is on SSD