2020-10-21 - Sven-Hendrik Haase
nvidia is currently partially incompatible with linux >= 5.9  . While graphics should work fine, CUDA, OpenCL, and likely other features are broken. Users who’ve already upgraded and need those features are advised to switch to the linux-lts kernel for the time being until a fix for nvidia is available.
Nvidia say it can be that till mid of november.
But for just using the driver for normal use it will work just fine!
only stuff like CUDA, OpenCL, and likely other features are broken.