You make some good points, but in my linked comment, and in the comment linked to that comment, I do carve out an exception that game publishers will likely be ones who want to pursue having their own third party app stores. That is because as seen in the PC gaming world, such companies can ruthlessly force gamers to join their locked down stores. But I think this is a specific niche that allows for that because games are a medium that’s developed into this sort of unique landscape.

Also, I’m uncertain if many of these companies really have that many iOS game exclusives to incentivize this sort of lock in- Epic being a major exception. But most other publishers don’t exactly have big iOS libraries. Most of their apps are more like incidental tie-in material accompanying their actual PC and console titles.