I think it'd be cool to make some GameCube VR videos for people to be able to look around in.
You could possibly use the VR build in some way. But since it breaks dolphin's licence I can't say any more about it.
Almost all games implement culling, so you'd need anti-culling codes first. But um, good luck recording it, Ansel won't work with Dolphin, and I don't know of any other recording software like that. :/