PS Vita game Ys VIII: Lacrimosa of Dana. This is early into the game when you find your first castaway. Adol stumbled on her bathing in the stream.
I personally always loved the Vita graphics and the feel of the handheld, so I prefer this version of the game.
I think you’re right. PSP has 1 & 2 chronicles, Felghana (3), Napishtim (6), and Seven was PSP originally. Though Im unsure how many of those were available digitally so that you could get them on Vita.
Then this game (8) and Celceta (4) were on Vita, as well as a rerelease of Origin on Vita.
Game 5 to date has never been released outside Japan, so 1-8, minus 5 are all theoretically possible on Vita.
It’s all on Steam nowadays too and I also play those on Steam Deck.