A question about the Sebastian Revisited mod: does he get friendship/rivalry points in Act 1?
I'm playing without that particular mod, and between my character mostly making choices that he agrees with and him only joining in Act 2, he's the only one I couldn't get anywhere near triggering a Questioning Beliefs quest for. It's frustrating as all get-out. At least his 50% QB quest can trigger in Act 3. Probably to compensate for his late joining?
Sebastian is basically dead weight in act 1 because he has no approval boosts and no quest dialogue. It's not substantively different from recruiting him in act 2. I guess I could go through and monkey with the approval boosts in my full game dialogue overhaul mod I have in the works, but here's the thing: going through and analyzing what various companions approve/disapprove of is gonna make me soooooooooooo cranky. So I haven't lol.
The thing about Sebastian is that he's also straight up just dead weight in some act 2 quests lmfaooo. I don't know that I've ever successfully pushed him to 100% without cheating, but he's also not the only character whose approval I usually end up cheating in a playthrough, since I'd rather choose the dialogue I want to hear than try to game the system.
Everyone's 50% Questioning Beliefs can still be acquired in act 3 (if it isn't bugged) though. That's standard.