Hi! Thanks for your kind words.
For Hive Time, I am specifically committed to (among other things) only distributing the game via storefronts that offer a pay-what-you-want model.
For my free/Free projects, I think I'd rather work with downstream package maintainers within the distro communities that my players are a part of so that experiences can be tailored to those suit those users' distros. Flathub is not for me.