The lag will be with you. VNC won’t be any better.
He’ll, even some YouTube videos are overly taxing from Firefox in Linux.
Also Stream seems to think Windows is more equal than Linux…
You should be using Sunshine/Moonlight for that anyway. You will get ultra smooth low latency 4k@120fps streaming to and from linux.
I regularly play games streamed from my noisy big linux pc all the way across to the living room linux pc. It's brilliant.