Saying this from experience ... I have tried to run Debian on Android for pretty long .. tried Samsung Dex to use tablet as my laptop ... ultimately .. these phony things don't work .. because the problem is form .. and phone makers have a target customer base - dumb population - who will pay 800 dollars every two years .. They do drop a nugget here and there to keep devs excited but three months down .. everyone understands it was a waste of time !