How is "let's make a platform more open and interoperable" a threat to anyone?
> When my mom was fed up with lack of a specific game (can’t remember which) on her iPhone, she switched to Android
"I know what's best for you: you must switch to Android". The irony.
> Only when monopoly was involved.
Word of the day: duopoly.
When there are only two platforms, and the world is very much dependent on them for a huge chunk of people's lives (to the point that banks refuse to support other platforms), it's strange to claim that a requirement for interoperability is a threat, or is forcing someone to do something, or is bad, or shouldn't be done.
Just listen to yourself. At which point did simple things like "setting default apps" or "letting apps use OS-level functionality" become "threats", "weird to force" and "government dictate"?
BTW. This is literally one of the government functions: to dictate and force common ground, interoperability, common standards etc.