If you’re not into vinesauce he’s an older variety streamer from the pre twitch days. Lot of his stuff is finding obscure and terrible games. Halflife amd its mods being a favorite of his.
This video is him explaining what it is, from an outsiders perspective. He goes through a some of the garbage explotive stuff that’s comming from it but also has his friend AgentRedJackel interview some fans of it via vrChat.
I found it was a good summary of everything you need to know without actually getting into it.