I’m currently using a raspberry pi 5 flashed with Konstakang’s Android TV image, it works pretty flawlessly and takes less than an hour to set up, assuming you have the APKs of everything you want to install. You don’t need to mess around with Google play services because most TV android apps are also designed to run on firesticks which don’t have it.

The one issue I have encountered is that the Jellyfin client very occasionally won’t play some 4k HDR media in the default player (all my 1080p stuff works fine) so I also installed MPV and I turn on alternative player in the Jellyfin settings in the rare case something doesn’t work.

I use sunshine and moonlight using a pi 5 running Android TV as the client. It works perfectly for the occasional video stream but latency for games is a bit rough. You’ll probably be fine playing something relaxed like Stardew Valley but platformers (I’ve tried Ultimate Chicken Horse) and racing games (Mario Kart Wii running in Dolphin) are just bad enough to be unplayable. This is with both devices connected over Ethernet (albeit through a powerline adapter and my router is fairly cheap) so WiFi will probably be worse.

Not sure if sunshine and moonlight just have loads of overhead or if there’s a part of my setup causing the latency.

I use Glutun for this

I would recommend you use Zigbee2MQTT instead of the built-in ZHA. It seems to play nicer with certain devices. I also used the dimmer switch method to reset a hue bulb I had and it connected perfectly.