Bloomberg:

Apple to Allow Outside App Stores in Overhaul Spurred by EU Laws.

Boom. If true, it’s massive. I can imagine Apple's engineering efforts to make it happen for WWDC 2023. I wrote earlier this year that I  changed my mind about sideloading apps on the iPhone. I still stand with my change of heart. I expect the iPhone experience to suffer with increased complexity for ordinary users. Not by much, but somehow, things will have to change to accommodate new workflows. It’s not an easy task to keep things simple. I trust Apple to find a good compromise. 

I don’t expect to use apps installed from other sources, except if there is a significant pricing difference or if it’s a unique app not available otherwise.