Auth0 Extension - limitations with Groups feature?


We are creating an application where a user can be part of multiple groups - and in the future, sub groups. I was advised that Auth0 has this functionality built in with the Authorization Extension, but noticed that there are limitations.

There will be 2-5 members per group, and we may have tens of thousands of groups. Users will be inviting other users. I see that this will be beyond capacity for Webtask Storage - should we plan to use our own solution for groups, or will S3 as a storage provider support this type of volume?

I also noticed there is a beta for Groups support in the Core Platform - will this be a worthwhile alternative in the near future? Any advice is appreciated.