On 2020-10-06 Kevin K. wrote:

Well, except for the lingering error report with "nfs-kernel-server" or "nfs-utils", which is a confirmed bug here: https://bugs.launchpad.net/ubuntu/+source/nfs-utils/+bug/1867031 (if you have a solution to this--even if confirming that it's totally safe to delete, I'm all ears!)

Most people aren't using nfs, so you can probably just remove those packages. If you are using nfs, obviously don't remove them (well, you can remove the -server one if you're not a server). If you aren't sure if you're using nfs, you almost certainly aren't.