and each closed-source drivers version only works with a single kernel version. It might work OK as long as the drivers and kernel are kept in sync (I think Pop! or Nobara have nVidia specific versions for this reason), but otherwise each kernel upgrade is a risk.

Are you sure this is true? I make no attempt to keep my kennel and driver in sync and have never had any problems at all. I'm pretty sure you're wrong about this

Plus nVidia drivers are basically shit with Wayland and cause a ton of issues.

This is kind of true, but overstating. I use nvidia with Wayland also the time and, apart from some games, it works really well. Many of those issues will be fixed when explicit sync is released.

That all said, is she that AMD is currently best for Linux.