It definitely doesn't work on AMD CPUs. I wrote to the guy a while ago who made one of the initial patches for OutRun 2 on Teknoparrot but never heard back.
In fairness though, being able to run it on my PC is mostly for completeness. That and being able to play any other games that might be in a similar position.
FXT is still one of the main things I built my lounge PC for and it still brings me constant joy, as I'm sure it does many others. We're all reasons to keep working on it - but what you've done already is miraculous.