@emmanuel - think this might be one for you.
What rules are used to decide whether a mobile version of the app is displayed? (is it reading page width or device type to decide?).
Have you considered making public some of the elements from the ‘Forum’ bubble app? It contains some fantastic examples of useful things, ans showcases how the ‘creator’ best practice for setting up things like page widths /element widths / responsive settings for mobile vs non mobile pages, element widths etc. Its a good baseline.