Mint is often the most recommended distro, because whatever you may need to do in it, it tends to be easy-ish to figure out.

But these days I would strongly recommend in favor of some immutable distro like Bluefin/Aurora or Silverblue/kinoite. Instead of being easy to figure out how to do things on them, they make it so you won’t need to, ever.

It’s a complete paradigm shift and it might not be for everyone, but in the decades I’ve been using Linux for, I had never had such a smooth experience with any distro. Everything just works and you don’t need to think about the OS anymore.

However it won’t easily fit with some of the requirements you listed.

There’s a movie trilogy about Musashi? How come I never heard about it before?