[the_real_cher]

What do you mean by Apple restrictions?

Are they arbitrary restrictions Apple puts on them to prevent this kind of thong?

[MattTheRealOne]

It is mostly around Just-In-Time (JIT) compilation. From what I can tell, it is an arbitrary restriction for apps published on the App Store. It looks like UTM can be sideloaded without the restriction.

See the UTM iOS installation documentation for more information: https://docs.getutm.app/installation/ios/