TIL that the version of ls in Ubuntu 24.04 will print errors if it can't get a list of a file's xattrs (used for, eg, 'ls -l'), and also that the Linux kernel NFS server will only let you list xattrs for objects you have read permissions on, although you can stat() them fine (of course) and this is not how local filesystems behave (and so 'ls -l' works fine on unreadable things on them).
In related news, we now have a patched local version of the 24.04 Coreutils package.