alt Hacker NewsNot Google's first rodeo. They pulled the same move in 2019: https://www.phoronix.com/news/WireGuard-Ejected-Play-Store
This is why software should not be subjected to an "app store" type distribution system, where a monopolist retains absolute control of what software can run on your devices, and can capriciously deny distribution to developers for whatever reason it likes.
You can install from other stores (AnkiDroid is on F-Droid, for example), or from direct file download on Android already. The problem is rather thay most users just use the store preinstalled on their phone as part of Google's deal with OEMs to bundle Google Play Services. So either you follow Google's rules, or you lose all the users who don't want to leave the walled garden, even though they can.