I think for most people this would mean using a chest. In your case, I’ll assume you either dont have enough space in your vault (case 1) or you are talking about accidentally dropping your equipped items/swapouts (case 2).
Case 1: This is how deca makes money from selling vaults. People don’t want to risk having their items on their character in case of death, so they buy vaults. I doubt that deca would make a change if this is your reason
Case 2: Personally I have never dropped an item by accident, but I can see how it would happen, especially if your mouse isn’t working well. However, its simple to pick the item up off the ground, and if you die because you dropped it or you can’t go back to pick it up, then you are extremely unlucky because that is a rare occasion