Saving Mizora Bg3 in Baldur’s Gate 3 allows you to negotiate with her, free Wyll from his contract and reward you with a powerful weapon, you need to have Wyll when you interact with the pod.
Talk to Brem to Free The Artist Bg3. Brem may purchase Oskar or ask for his release. Oskar's freedom price is 1000 gold, but a Diplomacy check against 15 or a Fear check against 20 reduces this to 600.