Change your background before a meeting

From Teams calendar, choose  Meet now and select Start meeting, or join a scheduled meeting. 

In Choose your video and audio settings, turn on  Camera, and select  Effects and avatars on desktop, or  Background filters online. 

Choose Video effects and then More video effects to pick images,  Standard blur, Add new,   Decorate, or  None. Select X to exit. 

To continue to a meeting, select Join now, or choose Cancel. 
Teams uses your new background for Meetings, Chats, and Video calls.

Tip:  Meet now provides a private way to experiment with backgrounds offline.