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- Click your profile icon and then Settings.
- Click General on the left and then enable "Turn on new meeting experience...".
- Quit and restart Microsoft Teams. On Microsoft Windows, make sure to exit the Teams icon that may be hidden in the status tray.
- While you are in a Teams video meeting, click the three dots and choose "Large gallery".
Note that this feature is grayed out unless you have at least 10 video participants in the meeting. - Each meeting participant will need to go through these steps on their own account.
- Other new meeting experience features are discussed here.