Also not OP. But i have tried to play multiplayer soo many times. But we have never been able to do it fully. Pirates that spawn are visible but only interactable for which player they spawn for. Bases are often out of sync, so we were not able to have a shared base. We tried with a group 3 times, and me and a friend twice, since No Man Sky Next.
Now with Bo Man Sky next, technically coop worked as none of those features I named were fully there for coop. But after that, nope. I do not understand why it has never worked. Each of our attempts are multiple sessions over multiple days/weeks. And then we would give up again.