Some quest lines do complete at the end of a quest, yes. If you like Ginasta, you'll eventually get a lot more content for her!
Hey! I've just started Chapter 5, now in Stineford and over 160 hours into my playthrough and I've been following the primary walkthough and Thosha's playthrough to maximize exp and to make sure I don't miss anything, if I remember correctly, Ginasta joins at LV 80, right? Of all the story and free roam stuff pre recruiting Ginasta, can/should any of it be put off so that she can get the exp too? This is my party's Lvl/exp right now:
Simon LV 77, Current Exp 1,512,938
Aka LV 74, Current Exp 1,413,862
Yarra LV 74, Current Exp 1,407,186
Qum LV 74, Curent Exp 1,376,226
Robin LV 75, Current Exp 1,443,121
Hilstara LV 74, Current Exp 1,399,303
Altina LV 73, Current Exp 1,347,316
Varia LV 72, Current Exp 1,326,413
Carina LV 74, Current Exp 1,383,997
Nalili LV 72, Current Exp 1,330,853(I rarely cheat, but I admit that I used save editor to give myself extra days in Simon's Route to level Nalili up to match the party, more or less, which felt harmless, as I had succeeded in getting the extra days(100-107) legitimately, so I thought, "eh, why not? might as get this little goober up to speed.")
Uyae LV 72, Current Exp 1,309,928
Vhala LV 74, Current Exp 1,407,088
Riala LV 76, Current Exp 1,475,777
The only segments that I missed out on exp that I'm aware off is that first enemy in the bounty hunter camp that I killed before recruiting Aka, meaning she didn't get the exp, the cement demon in Aka's route that I DID fight and beat initially, but then I had second thoughts and decided that it would probably be more beneficial to Janine to get both Thelon and Adamant on her side. Sorry elven dude who wanted to overrun the mine with demons. Another time maybe. Lastly, my Aram Front was high enough that my game automatically skipped the fourth and fifth waves of Hilstara's last stand, which yeah, meant she didn't get that extra exp, but because she wasn't injured too badly, she DID get the exp in the final battle against the Incubus Emperor, so there's that. Ooh and I'm definitely on board with saving and recruiting Altina being required, as she's definitely one of my favorites! And for those that don't like her in the possible circumstance where recruiting her is required, just ignoring her causes her to eventually leave to live with the elves in Yhilin, which hey, there are worse fates.
Anyway, I'm sorry if I'm bothering you with this, I'm probably overthinking it tbh, but thanks for all that you do! ♥