LLMs are already making the porting trivial. Most of the new releases heavily rely on coding agents.
But yeah, that's really where the fun is. So many games are already good and are even more immersive in VR. I'm currently playing Jedi Outcast. And I think for Doom 3 VR is the definitive way to play.
Edit: This enormous list of what has been released in the last 41 days was just posted on the Flat2VR Discord: https://htmlpreview.github.io/?https://gist.githubusercontent.com/elliotttate/62874c06da42b6942587038711742bb2/raw/5f4f74bdd401543b0d82488b8a9c82fba9ad07b5/index.html
It even has recent games like Silent Hill Townfall.