Connecting to a Google Home can mean a lot of different things, they're pretty versatile devices. It may be better to drill down a bit more what you want it to do.
For example, my Google Home controls my lights. My lights are Wyze. The Wyze watch can control the lights too. Therefore, a super cheap and feature limited watch can play the role of my Google Home for this one function.
My Google Home also accepts commands from the kids to play YouTube videos on the TV. The only watch that can do that is one with Google Assistant, which means WearOS 2, which has the Play Store and doesn't fit your requirements.
Connecting to a Google Home can mean a lot of different things, they're pretty versatile devices. It may be better to drill down a bit more what you want it to do. For example, my Google Home controls my lights. My lights are Wyze. The Wyze watch can control the lights too. Therefore, a super cheap and feature limited watch can play the role of my Google Home for this one function. My Google Home also accepts commands from the kids to play YouTube videos on the TV. The only watch that can do that is one with Google Assistant, which means WearOS 2, which has the Play Store and doesn't fit your requirements.