Would this make it easier to consume and store Teams data locally, avoiding the need for tagging M365 Graph API, if the goal is to build analytics or automation on top of Teams for things my personal account has access to?
https://developer.microsoft.com/en-us/graph/graph-explorer
Then you can execute the:
GET https://graph.microsoft.com/v1.0/me/memberOf
This will return you all the Entra Groups you are in, this includes the Microsoft Teams groups as well.