I’ve had good luck with Sunshine/Moonlight, though I haven’t tried it in the last 6 months or so. Was using it to stream my much beefier desktop to my Rog Ally while in bed when I hurt my back.

There was a slight latency, like, enough to notice that I notice, but hardly enough to catch when fully engaged. But the PC was getting like 200 frames in the games I was playing and that was limited to the 120fps limit I set for Moonlight (i think it let’s you bypass this to go higher, but I didn’t want to at the time).