That's fair and I do agree Google is the biggest threat. It's just that all these ID verifications are already tying you with Google (or Apple) in most cases
It was an example that’s not particularly bound to me. I use a cheap burner android for shitware smarthome apps I need to setup devices before they get adopted by Home Assistant - if I cared about specifically ID association with gapps, I’d probably use my burner for that too.
But I’m also under no illusion that Google has better analytics sources.