Android went dark long ago too. All of the open source apps are abandoned and unmaintained replaced by closed source versions. The Play Store takes a 30% cut of things like Apple. Google decides what kind of apps are available on the app store and it closely matches Apple.
Not arguing but rather expanding: You may be thinking "He just ignored sideloading get real" but tell me, are there any porn apps? No there aren't. They have no distribution channel and are banned on 100% of the computing devices people run their lives with which is their phone. "But porn works just fine in the browser" well so does pretty much anything else even on an iPhone so why are we even chatting in this thread? To end users Android sideloading does not exist.
Apple and Google control what types of software humanity gets to use and there are no viable alternatives. Apple has fully embraced 1984 as these recurring threads keep pointing out but Google follows Apple in lock step on nearly every decision. There is no third choice except the increasingly crippled web.