Also the device vendors. Because it requires a bootloader unlock to install. And device vendors aren't exactly friendly to consumers.

If Google tells the vendors to jump, they ask how high.

Google is the device vendor. GrapheneOS is only available for Pixels.

So far. Apparently they're in talks with other vendor(s).

As opposed to Android, which is... not living at the mercy of Google? Wait, that's not right.

People say this same shit about Firefox. "Oh they rely on Google for revenue! Jump ship jump ship!"

Yeah, and what about Chrome? How much does Chrome rely on Google for revenue? Its got fucking Google in the name.