If the current draft passes, it does something as well. Websites that want or have to rely on the signal will do it. Linux users will have to implement something if they want to access them. Parents that want to limit the access for their children on linux will be looking for implementations and use them. Everything happening without forcing the distributions.

They do use the same software. I think it is a good idea they run a separate instance, so the hosting costs are automatically covered by the government for the code they develop. This also avoids the centralization on a single provider.