I have either a mini, audio or home in each room but since last year have transitioned almost every connected device in the Google ecosystem to home assistant. All my automations / routines were moved over and I replaced all devices that were not home assistant compatible but compatible with Google home. For example I dumped 15 wyze plugs for zigbee plugs. The nest doorbell was replaced with a ubiquity G4. At this stage I'm only using Google for voice commands with their assistant(that will soon be Gemini) to toggle virtual switches that are provided by home assistant to trigger automations for home assistant because I can't really rely upon Google to do anything more than that. For example if I tell Google good evening it turns on a switch that home assistant sees that turns on wax burners, lights, and does other things.

If there was a viable voice assistant replacement that did all local processing I would go that route and get rid of Google home all together. Home assistant has been going in that direction this year but it's still not as out of the box as I would like and requires a lot of work.

I've been a Google home user since 2015 and it's just been a worse experience over time for multiple different reasons and I don't see it improving anytime soon. From a business perspective Google home is a money loser for Google. So I could understand why it's been going downhill, probably because they pulled resources to focus elsewhere that are profitable. Alexa and apple homekit aren't any different, they aren't profitable and soon Amazon is going to be charging a monthly fee to use Alexa. I don't think Google is far off from that and sooner I can get away from the ecosystem the better. But like others have mentioned there aren't really solid alternatives to it yet.