No. Games that are designed for 3dFX hardware use the Glide API exclusively and No other manufacturer provides any support for it. The "FX" series of cards from Nvidia are merely a series of graphics cards and have nothing to do with 3DFX, or 3DFX "compatibiility" whatsoever.
To make things more confusing, you can run Windows-based games that use the Glide API on ATI and Nvidia cards. That seems to contradict what I just said, but it is done using "Glide Wrapper" software; this allows the games to use the conventional Glide API functions and "think" they are running on a 3DFX card, but "translates" them to use OpenGL or Direct3D calls instead, so they work without any actual Glide Hardware.