Why? That shit leads to hilarious situations in PnP DnD sessions
Which is exactly why I believe Larian has to tread carefully if they wish to implement it. In the interviews we've seen so far, Swen has been giving the impression that BG3 seeks to imitate the same levels of possibilities for emergent gameplay that tabletop DnD can offer.
As I said before, I can easily believe that you'd be able to pick up a chair and throw it at whoever you're fighting inside a building, especially if it fits thematically like a bar brawl against a bunch of drunkards (who would also have the opportunity to throw the other chairs back at you)
But I'll have to draw the line if the game starts placing furniture and various types of decorative art in unlikely locations just so the player has the opportunity to lob them at their foes. You expect me to believe there's an intact mahogany table with accompanying chairs placed at the scene of every major fight, even if they take place in the middle of the forest, at a riverbed or any other outdoors location away from civilisation? Nah