Registered here at the forum just to thank you @wingcommander1999 for this post.

My upgrade Chimaera -> Daedalus somehow botched my Nvidia driver install and your post saved me (after I had tried, unsuccessfully, to reinstall the drivers).

A couple of things worth noting for others: The repo "non-free-firmware" must be enabled in /etc/apt/sources.list in order to able to install the package firmware-nvidia-gsp (which is a requirement). Also, I just removed the package nvidia-persistenced without any visibly negative effects (so far).