Hi @Mikael Tärnhed ,
Yes if you only published it to your organization, users should manually add this app to use.
You could use the Setup Policies here: https://admin.teams.microsoft.com/policies/app-setup/add
For more information, you could check this document: https://learn.microsoft.com/en-us/microsoftteams/teams-app-setup-policies
Best regards,
Lou
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