I use X11 remotely daily (and did so for 25 years). It comes for free with a simple ssh login and doesn't require setting up any server on the remote machine. I

I use X11 remotely daily (and did so for 25 years). It comes for free with a simple ssh login and doesn't require setting up any server on the remote machine. It just works (even if slowly at times). It beats setting up x2go/VNC/etc hands down.