Google 1 premium... How does. Photo sharing work?

[413x]

Not sure if this is the right sub forum for this.

Thinking about getting Google 1 premium.

Gf has a fitbit.
We have Google cameras at home.
2tb of shared cloud storage would be good.
Its only 7.99

What I'm not sure about is if it has to be attached to her account for the fitbit?
If it is attached to hers would I have limitations on photo storage etc?

Anyone use this

 

[413x]

I think (as I currently have a subscription at cheaper tier) I have my own space. And there are some shared folders, I think. Haven't used it for anything else but backup for a while!

But I wasn't sure if I'd lose this "private" space if it was shared.