I am also using NX (specifically, Nomachine's NX, an older version before they replaced everything with proprietary crap.) Right now for Linux, I think it is st

I am also using NX (specifically, Nomachine's NX, an older version before they replaced everything with proprietary crap.) Right now for Linux, I think it is still the best thing going. I use it in full desktop mode, as if it were a VNC or RDP session. Offsite, there's very little latency or artifacting. Onsite, as you say, it's nearly indistinguishable.