As someone who doesn't follow vtubers, I can confirm Holocure is excellent, and obviously made with love. Every character has a unique playstyle, and the aesthetc is a nice departure from the gloom common to the genre.
I played a bit of it and what I got was completely different to what I saw kronii playing. She had what looked like a fishing and farming Sim while I had reverse bullet hell. Runs great on the steam deck though.