I don't know if this is the place to post feedback on BG3, but I thought I'd share my input after about 100 hours of playing.
* Get a "mark several items" tickbox choice!!

I find now that this is my biggest issue by far (having to single-click every item.)
* Edge-panning and camera focus. I think I had this same issue with D:OS 2. I love edge-panning and feel it's the natural way to explore a game like this, but after every dialogue or interaction, the camera locks back on my character, and I can't use the mouse for edge-panning until I "unlock" the camera with WASD or similar. A bit annoying, but maybe there's a reason for this.
* Too many empty containers. I realize it may be "realistic" that many of the containers you search turn out to be empty, but it kinda lowers your spirit when 90% of the containers are empty. Maybe make less interactive containers instead? Or maybe I'm wrong.
* Having to click twice for casting spells with no target. It feels unnecessary and counterintuitive to have to target spells that can only target yourself. Is this something that was present in the D:OS games as well? Maybe there's a reason for it, but it annoys me (champagne problems).
* Party management in camp. Maybe this will implemented in the full game, but it's a bit annoying to have to talk to every party member to dismiss and re-hire another one, maybe just add a panel where you can choose your party formation (maybe this even exists but isn't active in the EA). Also, maybe make it possible to send items to people who aren't in your party while at camp, you're pretty close to the other guys.
* Movement on ladders: It feels a bit ridiculous that it cost zero action points to climb up a 20 meter high ladder, while moving two steps to the side does? :p Maybe this is a compromise, so characters won't get stuck in ladders mid-combat. Although, that would be pretty cool, being able to shoot people off of ladders.
* The waiting times during combat (plotting next move) should preferrably be shortened. I don't know if this has to do with my processor or something, but sometimes the combats become almost unbearably slow.
* Backstab: The backstab feature in this game feels very boring and meaningless, maybe this is because of adopting to DnD rules, but I much preferred the D:OS way, where Wolgraff could sneak behind them in the backstab cone and do insane damage

All hail Wolgraff!!
* Pause between lines in NPC dialogue: When two NPC's have overhead dialogues, I feel that the pause between line and answer often is too long. I often wonder if the dialogue is over, or if they have a comeback line, and it doesn't feel natural.
* Hit percents: Sometimes I can get two different hit percents on the same target depending or where I put the pointer? And seemingly with no difference in movement or such. Bug?
* Vendor sorting: Could we have a specific screen for things we've sold, and one with the vendor's original items? I feel I get the same clotter as in D:OS where all my crappy items covering endless slots in the vendor list.
* Camera in the Underdark: Seems a bit broken, although somewhat cool bugs

Characters walking seemingly on air and my main char walking seemingly under the ground. The camera in the game is a pretty big problem overall, though I guess it's always hard to get good camera with this "fake 3D" and vertical zooming.
All in all, a complete lovely game, of course, and keep the great work up!

/Gustav in Sweden