"Store for business" OR "Microsoft Edge Insider Addons"

Hi

I see most if not all Extensions add-on's in the "Microsoft Edge Insider Addons" are in the Store for business. whats the direction here can we disable one and manage all via the Store for business, as a enterprise this will be more manageable.

All so for IE extensions/Add-ons (legacy) will they work in IE enterprise mode, and obtaining them still remain the same or whats the direction here?