Larian Studios Forums Baldur's Gate III Baldur's Gate III - Suggestions & Feedback preparing spells: subject to difficulty setting?

I'd understand that for EA purposes, being able to switch spells anytime outside of combat is useful to test all sorts of things, and also for more relaxed settings for people coming from D:OS2
But for a supposed "Hardcore 5E" difficulty setting, I'd expect you can only change prepared spells with a full rest / at camp.