The modding community working on Larian games has a storied history when it comes to DOS and Baldur’s Gate, and the BG3 community is no different thanks to official mod support for the DnD game.
Rolan can be initially sighted arguing with his siblings in the Emerald Grove during Act One of BG3. He does not want to help the Tiefling Refugees and wants to leave for Baldur’s Gate to safety.