It doesn't really matter. there are really only twow contenders - debian based including ubuntuo and mint, and fedora based.
they use different package management systems to a fire it up and it goes package needs to be n both flavours. Its no big deal
Provide the package also has its dependencies OK it will; load the right libraries and install them too if necessary.
There is no reason the packages couldn't be simply downloaded from a 'non free' repository and people then had to pay money for a magic key. Or for support.