It would be much easier to be able to go to my manager with that kind of information. Right now the conversation goes:
"Hey, this linker could save us quite a bit of time on our enormous executable." "Okay, how much will it cost us?" "Well, there is this site where you can donate on a regular basis."
https://techcult.com/sideload-apps-on-android/
Furthermore, I believe that Apple can choose to shape the experience even after sideloading is enabled. They can add badge icons that single out sideloaded apps. They can force sideloaded apps to be on specifically marked pages on the springboard. They can add alerts and popovers galore that ask the user "Do you really want to do that?" wrt the sideloaded apps. Apple is a master of UX and branding - if they can influence millions of users via the blue iMessage bubble vs. the green SMS chat bubble dichotomy, they can find a way to subtly single out sideloaded apps as worthy of concern. Emergent user behavior then follows.
Finally, as I have mentioned in the previous link, Apple still controls the operating system that all apps, whether sideloaded or not, exist on. If they wanted to harden its security and strengthen entitlements in such a way that even sideloaded apps cannot bypass certain privacy or security safeguards, they can probably find a way. At they very least, they can introduce a similar notarization process that they already do on macOS on non-Mac App Store apps.
https://developer.apple.com/documentation/security/notarizin...
Everyone seems to keep forgetting, there is already an option on iOS for developers not wanting to go through the App Store: web apps. I believe WASM can even be used these days. Except that Safari doesn't offer developers some privacy sensitive APIs other browsers do. The current side loading pressure has very little to do avoiding Apple's cut and everything to do with bypassing Apple's restrictions.
So I expect should Apple introduce a heavily sandboxed side-loading experience, we'd be seeing developers complain they are not adhering to the spirit or the law or lawsuit.
Certainly, companies will misuse and abuse the freedoms associated with sideloading, but I disagree that it’s as an easy task as people think. First they actually have to build competing app stores that are compelling enough for users to overcome the friction of switching. I don’t think these companies, other than game platforms like Epic, and perhaps tech companies in politically sensitive markets such as China or Russia, have it in them:
https://news.ycombinator.com/item?id=19033451
I also fully expect the last browser holding against Google's browser monoculture - Safari - to die soon after.
I hate this state of affairs, where Apple's sheer greed is the main force stablizing this fragile environment.