Groups Guest access and SharePoint access

Thanks guys for the feedback! Couple of things, we have been working internally to rationalize this settings & this is the plan of record as of now.

1. By-default Groups have guest access enabled & the corresponding team site as well.

2. Currently by default files cannot be shared with new guests unless they are member group. We are planning to *change* this default with full guest access enabled, so that you can share indivudal files with new guest users through SPO. 

3. The way we want SPO settings & Groups settings for short-term is to be decoupled with the right messaging in the admin portal so that admins are clearly aware of what do they need to do to fully disable guest access.