> licensing, packaging, and lack of mobile support
To be fair, these are different problems from what the grandparent was discussing.
Licensing is a problem a business really shouldn't have: Qt is LGPL and PyQt licenses are cheap even for ramen-eating startups.
Lack of mobile support is a Python problem, I agree there. I can assure you everyone in the Python world is sorely aware of it. Unfortunately, nothing will change until someone does what Google did for Java with Android. But it's a problem that electron apps have too, because "html apps" are still pretty bad on mobile (and terrible on desktop).
Similarly, packaging a PyQt app is not much more of a problem than packaging any app that is not among the "blessed" mobile languages (Java/Kotlin and Objective-C/Swift).