This is sadly not even the full extent of it. What they did is, they locked their api entirely for anything that is not play protect certified. That means, all the cool stuff that was doable via community-driven projects is now dead in the water.
The "app" they provide is 60% advertisement, 30% features, and I unironically preferred using a Home Assistant connection instead of of it for everything. Even for automations like "when to preheat the car", since that was easier and more intuitive outside of their native function.
This also means, that charge control from the cars side is not possible to automate anymore.
Sure, one could take the position "but it was never officially promised", but for some people, including me, having the api (which is paid btw) was a selling point.
Yes, I registered specifically for this comment.
I feel like that should be a warranty claim. You sold me one car with a specific set of features and now you've updated it into a different one lacking those features. It's not the same car. You broke it. Fix it or pay me for it's value.
So "Play Protect" is doing all the damage to the third-party ecosystem that it'd seemed designed for.
I've slowly but surely been moving away from any service provider of any type who does not allow me to use their service without their often Play Services-dependent app. Changing vehicles would be a lot harder though.
I feel you. From my side I try to complain / rate / review every time, even if it's a low effort action, to cost them time and in the case of the regulated companies, to slightly worsen their complaint stats.
There's enough of users to start making a difference. Really, even a low effort action raising valid concerns (security theater, a lie, google's monopolistic position, anti-competitive, etc), keywords that will make their response more careful and potential complaint to the regulator more impactful.