I have a cheap Andriod phone ($250) from Motorola, bought when it was owned by Google.
I bought it thinking I was safe from the upgrade/patching mess... nope.
My battery is going... when I'm forced to buy a new one it will be an IPhone SE.
Andriod isn't bad on new phones, but Google half asses things from there on out...
It's no surprise Samsung tried to develop their own OS. Failed.
We'll see if some of these Chinese phones can do better. I bet they can get the Chinese govt to apply pressure on Google...