Hey, The "Link your zero-touch account to your EMM provider" from the Intune UI is not something I recommend anyone to use. A few years ago when it was first introduced In Intune I wrote an article on it here: https://timmyit.com/2022/09/26/first-loo...
I see the same behaviour and I'm a "owner" in the AZT portal. If my memory serves me correct, last time I was involved with adding users it was the reseller who invited the customer in to AZT that had to add new Administrators to the portal.
There are a few things to unpack here. As for the Home Screen, Authenticator, Intune and Company portal app they all comes as "default" when you configure and setup your Managed Google Play Account in Intune as per Microsofts own configuration and yo...