Just a few examples:
Second run: Discovered a lot of different ways to enter the Underdark that I missed on the first run
Did you find all four entrances? ;D
Both spectators? The hidden basement in the tower?
The party controls - I hate the chain system. The number of times it has screwed me over, just because I clicked on a different character and they all started running around like crazy. I have nothing positive to say about it at all. Please let me select my party members like in the predecessors. Also add a "all hide" button.
The delay/lag in character switching (click on a portrait) is super frustrating. Also please remove the delay in being able to control the characters after a climb/jump/whatever. The times I've frantically clicked the ground just because the game isn't registering my clicks due to Tav climbing a ladder or getting back on his feet after a jump is super annoying. Mind you, I don't think the additional time should be removed of getting up, I just want the game to register my actions while the PC is doing his thing.
Yeah, I use F1-F4 to select party members because clicking on them doesn't seem to work half the time. We definitely need a stealth-all button that applies to companions/pets/familiars as well.
The number of times I have for no reason I can see attacked empty air because of a misclick kills me.
Interactions with NPC skills: Dice rolls are fine for RNG, but certain checks should be automatic success if you pass a certain threshold. In my first playthrough I managed to to break the door to the burning inn on my fourth attempt with my PC mage with a STR score of 8, while all my other party members had all failed with significantly better STR. All things in life are not random. If your STR is 17, you can open that door.
Passive checks, I agree, I wish Larian would make use of these more. They are covered in the PHB and they used these in DOS/DOS2
In conversations, all my party members attributes and skills should be taken into consideration. They are standing right next to me, listening in. They will definitely inform me if they recognize a deadly poison.
Perception checks: If I discover something, please highlight it a bit more. "Hey I found something!" - Oh yea? A grey button on a grey wall in a dark room? Please highlight it longer (preferable until i mouseover it)

[/quote]
They said they are working on these, so we should see something between now and full release.
Barrel cheese: No, you can't carry 10 barrels in your inventory no matter your STR score. Please don't build encounters on cheese. Barrels should not be possible to be in your inventory. Good positioning of a single barrel = all good. Cheesing a fight by brining 10 - not so much.
This and the ability to throw creatures into the ceiling, or across the room at other mobs and do horrific damage without any kind of check other than having 16 str. You can kill all the Cambions on the ship and the Mindflayer this way. I discourage this in my multiplayer games. Like I get you could throw a Goblin, or an intellect devourer. But there would still be some sort of athletics/grapple check. A level 1 should not be able to throw a level 6-8 around like that and kill them.
really good Feedback, we def need more like this. make sure you check out Multiplayer as well and provide feedback on that. You can find groups at
https://discord.gg/jeFUyj4EMultiplayer is a blast.