Comment by Gormo

The developers and the FOSS community generally; F-Droid is a good app store for FOSS, but there's no inherent need for app stores in the first place.

Duplicating the tremendous success of the Linux ecosystem is a worthy goal, but even at the outset, the idea is to reach the 1% of users who want such a solution and are willing to invest thought and effort into it, and let it gradually become viable for incrementally wider adoption. Trying to target the 99% who don't care in the first place wouldn't make much sense.