There's plenty of reasons to drop Google thought. They barely improve old products.
They probably try to force us to use their products: I think you can't use your own assistant with a wakeword. On my pixel watch 1, using a calendar other than Google's sucks. There is almost no useful wearos apps (sure, it's the devs jobs but Google could bribe them or something). A lot of great wear os apps would benefit everyone.
I'm still pissed that they want a monthly subscription for the sleep tracking with the Google home thing... That you buy with your own money.
I care relatively little because I cut ads using browser plugins and suchlike.
Allowing anything shady, let alone incriminating in your email would be insane, whether it's a mailbox at Google or at Proton. Transactional emails from shady websites, like password reset, are best done with email services like mailinator, which offer zero access protection and destroy the received email in a few minutes automatically.