Authy 2fa doesn’t work on GOS because of Play Integrity. GOS has been talking with regulators in the EU about this.
An Amazon delivery locker doesn’t open without Sandboxed Google Play installed, I’ve switched to post office deliveries. I had to change my account user name to my actual name ( my name is extremely common so no big deal really) but at least I don’t have Amazon’s shit app installed anymore.
Google Pay doesn’t work.
Android Auto is hit and miss.
Not always, unfortunately.