I’ve not bought any train tickets yet so have no idea how it works. I’m just referring to YT videos I’ve seen referencing Luggage going through X-Ray machines being searched and aerosols confiscated.

Might be easier if you could let me know what to expect? I wasn’t aware you check in luggage for the train that doesn’t go through an x-ray machine. I genuinely thought you took your luggage on the train with you.