I don't appear to be able to add apps to meetings that have been created within specific channels. If I look at a meeting created in Outlook, I can see the options for Whiteboard and the plus symbol to add applications.
Is this by design or have a stumbled across an odd bug? Seems an unusual decision to not allow apps (like Decisions) to be added to meetings created in channels?
View for a meeting originally created in Outlook:
View for a meeting created in a specific channel:
