so what i want to (maybe naively) believe is that Larian will include to Difficiulty settings some kind of slider that will incerase, or reduce amount of food our party need to rest.
And that would also be completely useless, if this whole would be automatized.
Pillars of Eternity had something like this, where the higher the difficulty you selected, the fewer supplies you could carry. (At the highest difficulty you could only have 1 at a time iirc - so between each rest you would need to find more. This made boss-areas harder because unlike lower difficulties, you just couldn't rest)
And one achievement was linked to the number of times you rested during one full playthrough. (No Rest for the Pro - rest less than 10 times) As far as I know, Obsidian made it like that because there were a lot of complaints about the game being too easy when you could rest all the time. This is something that some BG3 players have complained about as well... It was an interesting challenge and plenty of people tried it so maybe Larian could take some inspiration from that but I don't know if it would work when we need to rest for companion scenes, tadpole dreams, quest triggers (like Raphael's visit), etc.
And PoE only used 1 object (camping supplies) instead of a number of different objects, so the clutter/camp supplies/inventory micro-management problem we have here didn't come up.
