https://update.hyundai.com/EU/E1/updateGuide gives a quick guide on how to do it. (One thing to note is a 64gb not 32gb is now advised, though a 32gb might still work.) I’ll update once I have my car and do my own. You should be able to do it via your mac Tillyman.
I’m hoping that as I live in a major city my delivery won’t be delayed, but we shall see. I need to look into some floormats/carpets too if the dealer doesn’t give me free ones.