Thing is, there actually are some good basic apps out there. Things like pomodoro timers with no ads or tracking. Super basic but useful, and hard yobfind because they get buried below other 'slick' versions stuffed with ads and trackers.
That's why it's better to download as many apps as possible from F-Droid. All apps are Free Open Source and checked for anti-features (like ads, tracking, etc.). Lots of basic (and not so basic) apps which are ad free, tracker-free and free to advertise that way.
Maybe Google could institute a better search function, like by Price/Free, Date, Category, etc. They are a Search Engine, maybe activate that on your scammy Play Store.
Interesting point of view, I think that is hard to establish a limit about how bad should be an app for being removed. Maybe malware only or if the app don't do the intended function.