Sweet Foam and syrup-style flavoring is presented as an option rather than a core workflow. Where discussed, reviewers note Sweet Foam variants in the menu and the ability to layer syrup and foam for flavored drinks, implying extra accessories and experimentation (14546, 14558).
Cold foam and flavored foam options are highlighted frequently, and at least one review notes adding syrup to make coffee-shop style sweet foam drinks. It is a differentiator for iced beverage fans more than a must-have feature.