The idea of "canonicity" in RPGs is an odd one, given the whole point of both videogame and tabletop RPGs is that the players decide what the main characters do. But sequels, spin-offs, and sourcebooks have a habit of choosing particular outcomes as the "real" ones—unless it's the Elder Scrolls, where every ending of Morrowind happened at once.
Baldur's Gate 3 had to deal with characters from Baldur's Gate 2 having canonical events happen to them between games, like Minsc and Boo being turned to stone or Viconia and Saarevok backsliding into evil, and now the cast of Baldur's Gate 3 are in the same boat. The latest Forgotten Realms supplements, Adventures in Faerûn and Heroes of Faerûn, move the timeline on from 1492—when BG3 happens—to 1501, and hint at the fates of its cast.
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