This VN game has me thinking about how a visual novel might be presented in VR. Kudos on making it and submitting it to the jam! I understand it is still early, so here are some thoughts and points to consider on the VN system you're building:
Since reading is the main activity here, consider if there is a way to make it easier to read?
Because the text was center aligned, the text moves while the letters are being added in, and trying to read moving text is tough for these old eyes. If it was left aligned, the text wouldn't move around and just fill in instead.
Also, I'm a fast reader and don't have patience for text to slowly dribble in with the effect, I'd like to just skip to the whole text being revealed, with just a simple trigger press or a setting.
To advance the dialogue, currently the game is making the player have to point to a very small little forward icon. Is that even necessary? Could we just press or hold the trigger? How could we go back to a previous dialogue? (B button would be nice)
Also, consider what ways you can really take advantage of this being in VR to make it a superior experience than what a simple flat visual novel reader would be. Right now, I'd have to admit that this experience would have been better and simpler as a simple flat visual novel. Why did this need to be VR (other than for the jam)? What value did VR really add to it and make it worth having a clunky headset on over a more comfortable flat VN experience looking at a monitor? What can you do to increase the value/experience to overcome the friction and cost of having this in VR? Maybe allow the reader to move around the space easily with some kind of locomotion? What if it allows you to see things from different angles? From different scales? Rewind/replay animations?
Have a look at an experience called "Eleven Eleven" on Oculus / SteamVR / Viveport. It's an example of a non-interactive experience really taking advantage of VR to experience things in a way that you wouldn't be able to otherwise to add a ton of value to the experience. It might spark some ideas?
I think you could really add some wow to your VN system if you dig a little deeper and think about how to really add value for the reader through VR.