+1

Baldur's Gate 2 used to block you from at least swapping armor IIRC.

Item interaction costs an action in 5E. You get one free per round, and sometimes they're free when they're part of an action (like drawing arrows from a quiver is part of the action to shoot a bow), but item swapping should cost actions. I assumed it did and never tried.

I also assumed food didn't heal and didn't eat any until I saw it mentioned here.