Im using a radeon 5500 xt and all drivers are updated. My problem is only happening on Sea of Thieves. Every now and then ill get black strings coming from the horizon and its usually only when the camera is hitting a certain angle. I previously had a gtx 970 with no issues on this game.
I am using a 6750xt and having the same issue. I made a support ticket with rare and they said if they can find a problem they will look into fixing it in a future update but its been 2 years.