In my experience, installing Linux Mint onto just about anything is trivial. IMO, the learning curve is more about using a different operating system than it being pre-installed.

That said, as long as you have a preconfigured distro like Linux Mint I think it’s about as easy to use as Windows or Mac. The main difference is that people are already used to how Windows or Macs work, and have forgotten there’s plenty of jank that they’ve learned to avoid. There are still things Linux could improve on w/r/t new user experience but I think the gap is getting smaller every year.

Feigned enthusiasm/friendliness. “Thanks for catching that problem!”

Whenever I have something to say, someone has already said it. People are always on the ball here.