This feature request is now in the planning stage. As more details become available, I will post them here.
16 votesGian commented
We have exact the same problem. It does absolutely not make sense to add all users even those who don't have a Microsoft Teams license to an org-wide team. This feature is not usable for us how it was implemented by MS currently. We deleted org-wide Teams again.
Due to prioritization of other work-items this has been moved to the backlog. We will update when it is being actively worked on again.
Sorry for the delay on an update on this one! I’m hunting down the status for you and will update once I have it.
Also, if you are interested in participating in testing or surveys for this, just tweet me at @skprufo.