Nvidia released a hotfix intended to fix screen flickering and stuttering in some applications on the 4th March- might this help?
Announcing GeForce Hotfix Driver 461.81 (Released 3/4/21)
24
MAR 2021
MAR 2021
NVIDIA STAFF
Manuel@NVIDIA
2d
GeForce Hotfix display driver version 461.81 is based on our latest Game Ready Driver 461.72 .
The hotfix addresses the following issues:
[Fortnite] Shader cache optimizations to reduce intermittent stutter on some PC configurations [3244272]
[GeForce GTX 1660 Super]: Random flickering may appear across the top of the monitor on some PC configurations. [3184254]
[Vulkan] Red Dead Redemption 2 may display pixelated black dots [3266614]
Some desktop applications may stutter when moving around the window on some PC configurations [3252200]
Enabling NVIDIA Surround with 4K HDMI 2.1 TVs may fail [3184849]
[Rocket League] Matches may take longer to load [3244324]
[Detroit: Become Human] Game may crash when launched with Image Sharpening enabled [200667092]
It can be accessed here:
https://nvidia.custhelp.com/app/answers/detail/a_id/5168