This policy setting controls whether users can turn on Live Subtitles during a presentation. By default, Live Subtitles are off but can be turned on by users.
If you enable this policy setting, users can't turn on Live Subtitles during a presentation.
If you disable or don't configure this policy setting, users can turn on Live Subtitles.
Note: This policy setting only applies to subscription versions of Office, such as Microsoft 365 Apps for enterprise.