Like I said, this is not a new issue (just googling Lae'zel not following, or companions not following brings up many threads, some of them from 2020, patch 1). For me, the trigger for Lae'zel to stop following the main char was to start sneaking prior to the first fight encounter on nautiloid (albeit apparently other players experienced different triggers, some of them being scripted actions, like saving Lae'zel from tieflings). I thought this was just temporary, but the issue persisted. In Chapter 1, I can't do nothing so that she starts to follow the main char (or any other char) again.
EDIT: it is also worth noting that I have a high-end tabletop PC that should not run into any issues due to its inadequacy for the game.
Last edited by 0rfeus; 10/07/22 03:33 PM. Reason: supplementary info