Inside Settings->Accounts->Google->firstname.lastname@example.org there are options to disable individual apps. I'm interested in:
As long as I'm logged into the Google+ app, I can't disable those sync options. If I disable them, they just re-enable within a few minutes.
If I log out of the Google+ app and the Photos app, the option to disable those sync features disappear completely. When I open the app again, Google+ logs me in and the options reappear, automatically enabled.
Is there any way to actually keep Google+ around without having it automatically sync all the time?
FYI, I also have Auto Backup disabled in G+ Photos, so it's not that either.