If I remember correctly, before, I only played a little bit of it, struggled with Jill's fight a little, then continued my way in Floater's Forest until I interacted with Gigi, being prepared to fight, but I declined and ignored her (might be a bug). Then I continued like normal, up until I met the NPC with healing stomach, but got a game over after interacting with her. I don't remember if I had a save file for it, but after that game over, I stop there for the vore route, knowing that vore route might be unfair and difficult.
Now when checking out this patch, the dev room got expanded (which looks nice), there's just a downed Atlass in the room, with the option to start with Isabella and the vore route enabled. When I select it, I decided to check out the Reservoir because I remember reading some comments saying that Polly can't be saved in the vore route, and I wanted to see if it's true. It turns out to be true because after seeing Nessie leave with the devoured frog, the quest updated, but did not say it's a timed quest. I was a little depressed after knowing that, and I stop there.
Like I said, it's basically Undertale, making me sad and depressed when playing the vore route after the non-vore route. I love Polly so much; it's makes it so hard for me to play the vore route, knowing that I can't save her. 😭