If sideloading wasn’t allowed, there would be no apps on the App Store

Generally, common knowledge doesn’t need to be cited, so here:

developer.apple.com/support/compare-memberships/

developer.apple.com/…/dma-and-apps-in-the-eu/

developer.apple.com/…/devicemanagement/

Also, you should probably learn what Ad Homenim is before trying to use it in a sentence en.m.wikipedia.org/wiki/Ad_hominem

The fact is, and will always be, that Apple allows sideloading on all iphones in all regions, and their limits apply even in the EU. I’m sorry if you feel like that’s a personal attack.

And to finally, to address your attempt at changing subject (because you stopped being vague and finally admitted it), Jailbreaking is not within Apples rules (the hint is in the name). Hope this helps!