Nah, Xyaomi or what ever has only some phones with stock android, the mi a1 and the mi a2 with all of their variants.
I still have my Nokia 3, it is not used anymore on a daily basis because the battery is a piece of crap, thanks to a 2 year old kid, but it is on android 8.1, not sure if it is go, but on 8.0 it wasn't, but now, after the 1.8 gb update, I see the files go app.
It gets updates every month and roons ok.
And do not know about Samsung, why the hell they don't update the note8 to android 8.1 and the j5, 2017 crap is on android 8.1?
It does not make sense, but the a series gets 2 security updates almost monthly, for example, my a5, 2016 came with android 5 and now it is on 7 and on the december update, with almost no issues, except a restart once or twice a month.
And that guys, is just because, they want you to switch to something new, in rest, it gets updates and works better than my old s7 edge, long storyes.
I am myself and noone is ever gonna change me, I am the trolling master!