Her own iCloud account that is part of a Family. So yes and no? Yes, she has her own account, but no, because she’s also under the umbrella of my account (“Family”). But it has always been this way, yes? One must be under the Family umbrella to see the devices of others?
I was about to ask, “how would you find her phone if she’s not in ‘The Family’?” And it occurs to me that you probably would enter her creds into Find My Phone, then find her phone. Yeah, that was broken from the start IMO. Though the current model breaks your previous flow, umm, maybe use it as intended (and the way it should have been to begin with) and just use the Family feature?
Anyway, probably time for me to let this one go, I don’t even remember the original issue without backtracking up thread. :-)