That's how it is advertised. But in reality all decisions are made by Google for Chrome and other Chrome forks just implement all of them without questions. Google wants to add a new protocol - all forks add it. Google wants to cripple adblock support - all forks do it. Etc.

Since the development is done in chromium, adding owners to the project, maybe changing governance similar to Kubernetes and the CNCF, could help steering the anti-trust away and benefit the industry as a side effect.