As far as I can tell, Google, culturally, just hates maintenance. Or practically anything that's not a product launch. Ask anyone who's done much development on Android—eternal bugs (I've seen people provide patches and beg to get them applied on bugs years and years old, and be ignored), half-assed implementations of all kinds of things, poor docs often with outdated info, mediocre architectural direction—and that's on a major product!

I think it's some combo of an organizational/internal-incentives failure, and a cultural thing where all these "geniuses" they hire can't be bothered to do any boring shit, to include, sometimes, properly finishing features they start developing.

It is not compatible with a lot of stuff. Can't subscribe to youtube premium family. Can't use android automotive. Can't use this that etc. I switched to my old basic google account for google services and probably move my domains away from gsuite at this point.

Nothing you've said here has prevented the last 4 companies I've worked for from using it, though. One of those companies is a very large, public company. It seems like people are still buying it.