It's such a breeze to do this in 2026. Which reminds me that the first time I tried Linux what 20 years ago, with an Edgy Eft live CD. Happy 20th Linux anniversary to me! 🎂
(If you'd have told me the insane amount of hours I would spend in the next years geeking out on stuck install and esoteric command line, I'm really not sure if I would have insisted 😅)
If you need to import your photo library from macOS Photos app, the osxphotos is perfect. It's a command line tool, and it's absolutely worth the effort if you're not comfortable with the command line but want to get your photo library on your new Linux machine.