That is true, though the implementation is weird.

I mount my nfs shares like this: sudo mount -t nfs -o nolocks -o resvport 192.168.1.1:/tank/data /mnt/data

-o nolocks Disables file locking on the mounted share. Useful if the NFS server or client does not support locking, or if there are issues with lock daemons. On macOS, this is often necessary because lockd can be flaky.

-o resvport Tells the NFS client to use a reserved port (<1024) for the connection. Some NFS servers (like some Linux configurations or *BSDs with stricter security) only accept requests from clients using reserved ports (for authentication purposes).