Microsoft Teams is the app that brings the rest of the 365 together. If you're not using Teams yet, you probably should be. If you are using it, have you got it structured the way you want it?
Do you know the difference between a team and a channel?
Know how to keep things private?
Send email to Teams channels?
Use Apps within Channels?
This and lots more will be covered on this 40 minute demystification
If you're already using Teams and have a bunch of channels, come learn the secrets to make them even better