Mojibake is annoying, but it's also an interesting peek into the inner workings of how computers store and handle data (in this case, characters). It's one of the more mundane examples of "computers store data in 1s and 0s" in action.

Incidentally, a lot of Japanese software are still written to Shift-JIS, so it's still fairly tedious trying to run them in an environment that's not set to Shift-JIS. I wonder if there's an AppLocale equivalent for Windows 11...