You will find the corresponding option inside:
Dashboard >> Appearance >> Customize >> BuddyPress Nouveau >> Group Front Page.
Here you will get the following options to configure the default front page for groups.

  • Enable or disable custom front pages for groups.
  • Enable or disable widget region for group homepages. When enabled, the site admin can add widgets to group pages via the Widgets panel.
  • Display the group description in the body of the group’s front page.

Group Front Page Settings:

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