If there are dozens of items laying around in a location, and I don't know beforehand which are important or not, AND the ping system doesn't reliably highlight all (or just important) items, then I have to spend time examining the items to see if any are important.
To get a bit more on topic to UI: then when/if I pick up items, the game should clearly mark which ones are important and which can be sold as junk. In fact, junk items should automatically be sent to wares for selling. All this will be even more relevant when/if Larian implements a crafting system (Honestly I'd rather they didn't -> all crafting should be the result of quests like the Sussur Bark quest).
For the purposes of throwing items, honestly I don't even think the Throw menu should bring up junk items to throw. Am I really ever going to want to throw a spoon instead of doing literally anything else with my action? The Throw menu should only bring up weapons with the thrown properties, grenades, and anything else that's meant to be thrown.