tbf Google is so far ahead that it’s kinda not a real company. Aka you don’t have to adopt every best practice google does since you aren’t that big, mature, secure or rich.
Only anecdotes from several people working there at different divisions. I think I've seen it mentioned here at times as well.
One of the lead devs - years of tenure - on one of the Android backend teams had barely heard of the name and wasn't sure what it was when I brought it up 2 years ago.
Linux containers including Docker are absolutely widespread as I understand it, though.
