Videos made from VaM are just using the normal scene file, which can be used in desktop or VR mode. If you start VaM, you can select between the two (there are also dedicated bat files within the main directory). So if you have the scene file, you can use them in VR, there are no separate VR versions, although some scenes and plugins may only work in desktop mode or are at least not tested in VR, whereas some creators are careful catering to the VR experience.
Regarding getting scenes and discovering the specific source scene files: that is a long journey

You can start here:
Music scenes are fantastic! Since VAM doesn't have a "Music" tag for scenes, I figured putting a list of recommended Music scenes with links for newcomers & anyone interested. - A "Music Sex Scene" is a scene that involves Music synced to Sex...
hub.virtamate.com
I started the same way, seeing lots of videos and trying to find the specific scenes afterwards. The thing is, lots of ppl make videos of other creators' scenes and don't give credits to the original creator. Also there are several creators who were banned here because of rules violations, you will only find them elsewhere, mostly on patreon or similar sites.
For example, my first VaM awareness ever was a video from the scene hip venus from abc tits. He isn't here anymore, so i just found that scene months later, didn't even know what it was called back then.
You have tons of scenes here on the hub, just crawl through and try them out