I already started it and bought BG3 as well. I had played Planescape: Torment about 10 years ago, so some of this was familiar, but it and Baldur's Gate have some different philosophies around things like combat and party size. One thing I'm fairly confident will be a thing of the past when I get to BG3 is trash mobs. BG1 at times feels like it's being run by an asshole DM who's out to kill the party with tons of trash mobs between rests rather than providing a good time.

Imagine you're at the table with your friends, and the DM says, "Then, from the darkness of the dungeon emerges...6 Kobolds!" You beat them, the party is pumped about it, and then the DM says, "As you press further on across the bridge, you come across...7 more Kobolds!" I'm not exactly sure what the thinking was, but between the aforementioned trash mobs and the magic casters who attack you with debilitating adverse affects that do tons of damage and take you out of the fight for like 20 straight turns, BG1 can be cheap as hell, even on easy difficulty. I get the sense that BG3 will still be difficult, but from my brief time with Divinity: Original Sin and what I've seen of BG3 footage, I'm expecting them to have more consideration for each combat encounter.

And oh yeah, BG1 also had a few areas with really narrow passageways that the AI pathfinding was not really able to adequately handle, as friendly characters would bump into each other and not be able to figure out how to move.