Play with laptop on the PC?

Surely you all know (no ads) "Shadow" A service that you pay monthly to get on their servers a remote computer with which you can then connect to his own laptop. Now my question. Is there a way to do the same yourself, using your desktop PC to play games on the laptop?

That's fine. But a little more elaborate. Would ask Google to times. Because there's a lot to do around it, it's not that easy.

(Before now again the complainers come, NO TeamViewer or streaming over Twitch and Co. Is not an option)

Any tips on what to look for?