There might be some confusion on what the mobile app is.
The mobile app is a separate fork of the GDevelop engine, it is not “GDevelop on Mobile”, think of it instead as “GDevelop Mobile”, a separate app that’s development costs are made possible by the subscription, and it is made explicitly for paid subscribers.
The limitations on the mobile app do not exist on the web or desktop client, and they will not carry over per the devs (as mentioned, the mobile app is a separate fork).
Also, per the developers, there will not be a “for purchase” version of the mobile fork, as it is a subscription benefit/designed for the subscription.