you can go to options and uncheck "auto add" x y z to hotbar. I leave everything off except for spells. Locking hotbar just stops you from dragging items out on accident. Inventory management has sorting I'm sure you know, by weight/type/recent/value.

If you are sorting it to your own likes, then just avoid filtering.

What I do wish is that bags were better utilized, I would like to just click and drag/drop an item on the bag to auto insert into bag and not have to open the bag up and manually put it in a specific spot. Also I would like to be able to sort within the bags as well.

Lastly, not just with bags/inventory but also the chat log. Things tend to like to scroll to the top on refresh. When placing items in bags if it fills up enough where you have to scroll down a bit, the next item place in the bag zips your view back to the top of the bag scroll bar and you have to scroll down again just to see the empty spots. Except if you place an item on the far left column of the bags, then it stays scrolled down to the bottom with free spaces....