If this had cellular connectivity it could actually be a pretty cool phone. The battery life is probably good too

I switched to Bazzite on my main PC at the start of September and it’s been great. I only use Windows for steam link vr streaming

Any specific reason you don’t want something mainstream? I would recommend a Nvidia Shield (tube). I have one for my living room tv and another for my bedroom and they are great. I also have a shield pro for my theatre room. I used to have a htpc in there but it would occasionally break on updates and wasn’t nearly as user friendly as the shield