No, I see a disadvantage maybe enough people would be able to lag the server by repeatedly switching sorting thou I imagine it’s pretty fast so negligible… so I mainly said that as a joke. I simply think that whoever made the new UI just did it like that
The only advantage I could think of is allowing a one-time sorting and then being able to move items from there on, so there CAN be benefits to it… but not at the cost of removing the custom sorting, so I think if they want to keep this, they should reimplement that to some degree or at least allow items to be exempt from sorting… something to grant the ability to keep certain items in certain slots, especially with the (vanilla) shortcut bar being quite limited, I usually kept gas masks / waterskins / etc. in the top row of my inventory too and used custom mode, only switched to heaviest temporarily when offloading loot.
It’s literally why I made my compactor mod