The Complete Office 365 and Microsoft 365 Licensing Comparison is a quick navigator for the confusing world of MS subscriptions. Includes a list of updates to the chart, so you can always tell if the most-recent announcements have been added. fencepost_ajm tells us, "For a lot of the M365 stuff, the Infused Innovations post (originally from 2019, updated regularly, most recent with changes in March, comments from maintainer as of this month), this gives a lot of detail. It does have the M365 Business plans split into two separate locations—Biz Premium with M365, the others under O365. Bear in mind that the original predates the rebranding of O365 plans."