Topics Map > Service Catalog > Communications and collaboration services > Instant messaging, presence, voice and video chat
Microsoft Teams: Change or Add Picture
How to add or modify profile picture shown in Microsoft Teams
The Microsoft documentation for changing/modifying a profile picture can be found here
When you add or change your picture using the directions above you change your picture for your Microsoft 365 profile as well. Outlook, Teams, SharePoint, Delve, etc... will reflect the picture change.