The problem with encumbrance is that it’s just adding up numbers until you can’t add up anymore. It’s too mechanical. When you’re packing in real life do you weight everything and try to get an accurate carrying capacity for yourself? Unless you’re afraid of getting a surcharge at the airport I don’t think the precise weight matters. You try to jam everything in your bags then try to lift them and then decide if it’s too much. Encumbrance should feel more instinctive. I'm not sure what they can do but listing the exact weight is not it.
Water, food and torches are way too easy to obviate at level 1. I think people like they idea of worrying about food, water, etc, but they don't actually like to track it manually? Like... ticking down your ration on your character sheet isn't interesting, the rest interesting stuff is deciding what you do when you get close to 0. It's only interesting when you're running out.
Unless weapons start shattering after 2 fights like in Breath of the Wild, those are just peanuts in term of expenses.