Mark-Kashman Thanks for this! We have lots of classic site collections in our tenant (migrated over to O365 from SP 2010). I had considered a plan to create new site collections using the modern team site template, then migrate classic site content into them (eventually having nothing but modern team sites and communication site templates in our tenant). It would be much simpler to "modernize" the classic sites we have by "groupifying" them and then connecting those that need to also use Teams. My question for you: Is there ANY advantage to having a site using the Modern Team Site template rather than a classic site "modernized" by attaching it to an O365 Group w/ a modern homepage? Groupifying sounds much simpler, but I don't want to go that route only to find an issue later down the road. Getting a definitive answer from Mark Kashman himself would really put my mind at ease. :)