Thanks to Sandy Johnson who gave this as her Pro & Tech Tip on episode 168 of The Presentation Podcast! This applies to everyone that has multiple accounts, or tenants, on Microsoft teams.
Within Microsoft Teams, if there are multiple accounts, click on your name and available accounts are shown in the dropdown.
Microsoft Office now has the option to choose what account, or tenant, Office is using (no more signing out of one account to sign into another, it is now a dynamic selection!). Within PowerPoint, if there are multiple accounts, click on your name and available accounts are shown in the dropdown.
Troy @ TLC