I haven’t found a compelling reason to not just build a solid gaming pc, then buy a Chromecast and steam link to it.

Latency is quite low on a wired connection, I can steam 4k to my TV, and I can use an Xbox controller. You literally couldn’t tell me the difference most of the time.

I’m rocking an 11th gen Intel i9, 4060 ti, and gigabit network wired between PC <-> chromecast.

Just make sure you get the latest chromecast that can handle 4k streaming though!