I'd say all.
Just as you said, they are not active.
If you go to account settings for your company/Microsoft account you can activate at least one of the accounts though, then the greyed out is "white" and it's working as intended.
HOWEVER, our admins claim that the accounts SHOULD be white (and working, activated) from the beginning and they REFUSE to hear anything else, "it's the user").
I think, that they think, that they have set it up so all new devices get an active, working, MFA app from the start when they get their new company phone. This is what I'm trying to understand, is this even possible? Since it's not working as THEY intend, can it even be done or is it just working as (Microsoft) intended, that each device needs to be manually activated first?