Yeah the retro gaming handheld community has some Linux viable ones with PortMaster but its just not the same as an officially supported mini Steam machine. I know its silly but I want one that is pocket-able instead of the massive SD.
That being said I love the Miyoo Mini Plus and other linux handhelds. They are flipping awesome!
I have a similar model 2016. Ubuntu worked the best on it. A trick is to connect the Ethernet so it can detect and download the latest drivers while its installing. WiFi and fans are spotty before that.
Its interesting last month or so youtube has seemed to switched on how it feels about Linux lately. You get small creators that are making videos like the above and its awesome.
It works best on old kobos. Those are as easy as imaging an old sd card and running with it.
And the new kobos are VERY difficult to work with. The os is kinda slow on most models. The discord is the recommended way to talk to the main devs of the project. The project hasn't been practically updated in a long time.
This is why installing software (side loading?) is so important on our own devices. Who cares if google has a problem? Its my device, I should be able to do what I want with it, including install software.
The effort they are putting towards x86 emulation will definitely help the broader Linux community. I saw a bit about 24 min in on gamer nexas video. That would help down the line on all sorts of devices.
Around 28 hours with WiFi on. Its kinda annoying how long it takes to charge 4+ hours from 0 to 100.
And it resets its name if the power ever goes out for more than 10 mins. That sucks.
Not terrible for a daily carry but not something I would take with me for trips.