Shader model 5 black stripes occurs like Z-fighting but it's not

Black stripes occure everywhere in any open project, in viewport and in-game.
Lumen off - lumen on doesent matter. If I switch to Vulkan it dissappears. Then back to SM5 again appears.
I have Ryzen 5 2600 and Nvidia RTX 2060 super OC with most up to date drivers.
Please investigate.
Edit: One more thing: building lights also doesent help.