I have tested it with a couple of games, and it's not worth the time : )
Long story short: RTX Remix uses great marketing words and fancy features (as Nvidia do all the time), but it's somehow an overhyped filter over your current game (at least in the stage I tested it). Unless you capture, you can't get far. If you prefer: if you don't remix the whole game, it's not worth using.
Which in VAM's scenario is kind of impossible due to the nature of the game being modular.