The UI shows the green "this thing can be dropped here" border where it previously didn't. In the attached video, I am allowed to drop a gas canister into the "Cookware" slot on a gas stove, which makes it end up in the "Gas Canister" slot. I am also able to drop it onto my character's "Vest" slot, which makes it end up in my backpack.
If this is an intended change (e.g. for accessibility reasons), this task can be closed.