Among Linux distros, Ubuntu has a booting advantage, which is that its bootloader works on computers with secure boot ON without creating its own key on first boot. (I don't understand about this topic, but I read that it has something to do with "shim" and Ubuntu's security key being recognized/bundled by Microsoft.)
Since some Puppies are made from Ubuntu, it seems like it might be possible to use Ubuntu's bootloader for a Puppy (a new one?). Maybe there would be legal issues, but I am just wondering about the theoretical feasibility of the technical aspect. If it were possible, it would create a lot of flexibility for booting Puppies.