Hag Coven content was cut. Ethel's letters to her sisters in Baldur's Gate are STILL IN THE GAME. Yet you encounter no hag coven, but only Ethel. Same for Myreena's brothers. They didn't get killed in my playthrough, but they never reappeared in the Lower City.

You also never encounter the Gondians after rescuing their family in the Iron Throne and freeing them at the Steelwatch Foundry, because they're meant to reside in the House of Wonders in the Upper City, but the Upper City is cut.

There is also a random Flaming Fist that gives a speech in the final battle, but throughout the entire Act 3 the Flaming Fist are hostile mercenaries that never truly are interacted with and convinced to come to your side against Gortash.

There is not a single Harper remaining after Orin kills the contingent in Baldur's Gate, somehow the few we know remain all at Moonrise Towers. The Harpers storyline for Jaheira just goes cold.

Minsc is recruited way too late into the game. As a result, he really has no story whatsoever besides the joke that you rescue him after he got randomly tadpoled by Bhaalists. Very undercooked.