> The Bazaar feeds the Cathedral
Isn't this the licensing problem? Berkeley release BSD so that everyone can use it, people do years of work to make it passable, Apple takes it to make macOS and iOS because the license allows them to, and then they have both the community's work and their own work so everyone uses that.
The Linux kernel is GPLv2, not GPLv3, so vendors distribute binary blob drivers/firmware with their hardware and then the hardware becomes unusable as soon as they stop publishing new versions because then to use the hardware you're stuck with an old kernel with known security vulnerabilities, or they lock the boot loader because v2 lacks the anti-Tivoization clause in v3.
If you use a license that lets the cathedral close off the community's work then you lose, but what if you don't do that?