Catalina 10.15.6 Graphic Glitch

Hello everyone!

Yesterday I installed hackintosh (Catalina 10.15 after that updated to 10.15.6). Everything seems fine until I try to play couple of games.

When I run a game, no glitches spotted but when I start a video on youtube (Some music) or friend shares screen in discord it starts insanely glitch.

Tried many things like:

• Installing nvidia cuda drivers
• Injecting nvidia through clover

How I installed Hackintosh:

• Mounted Catalina on 32GB USB flashdrive through transmac in Windows, booted up erased my SDD to Mac OS Extended, and whent through all instalation process.
• Installed Clover Configurator

Here are the photos of PC specs and graphic glitches:

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I have added SSD Samsung 850 Pro 128GB

https://preview.redd.it/s87qe0orjbk51.jpg?width=4000&format=pjpg&auto=webp&s=23d55f0d4f783b4e34c9f1a416c1294ff72bfb58

https://preview.redd.it/tg8ax3qqjbk51.jpg?width=4000&format=pjpg&auto=webp&s=d34c3aa6af9ec01ce35f083602d82f6013274c69

https://preview.redd.it/8ih18bnpjbk51.jpg?width=4000&format=pjpg&auto=webp&s=740cf7a281ce416a33e51047467633e82950f4c8

https://preview.redd.it/d0v8j0pljbk51.jpg?width=4000&format=pjpg&auto=webp&s=5179776a427d39eaf2aa537981a6d3729bc76cc6

P.S. I'm new here and I'd really apreciate for your help!