If you already have Ethernet at both ends I cannot recommend enough game streaming. With the right setup it is almost identical to having my computer plugged in physically, and I am very sensitive to input latency. I can get 4K HDR 120Hz running over gigabit Ethernet without visually sacrificing too much on bitrate, but you can squeeze more bitrate at lower fps or 1440p (obviously) if that is your preference. You can…
Out of curiosity, why not use a $10 steam link to achieve a similar effect to using a $700 gaming tablet?
I have tried both Smart TV and Android Streaming Box hardware to run various setups - both of which are theoretically capable - but in practice fall short compared to the Steam Deck experience (which I already had lying around almost gathering dust)