Really like this, will get one

One annoyance that I anticipate though: can we have a "separate identity" for these 'home devices' ?

[note: this is not a concern if you live alone]

I.e. when used in a family environment, you have to pick one person's identity as the 'main' identity ... but we'd rather have a 'home' person with whom we share stuff, whom we add on calendars etc, and then view THAT info on the home devices.

This sidesteps the whole "WHOSE calendar/reminders are showing" issue.

This is a problem on the homepod, and will only be exacerbated on the HomeView.

Or ... how do other folks solve this?

Yea I struggle playing Spotify across home devices. My kids will start music in their rooms on smart speakers and it uses my account, so when I am listening elsewhere it stops (or plays their music). I even have a family spotify account but no one does a great job managing the handoff. As a single person, loved spotify account sharing across devices. Now not so much