Request a new feature, or support for a camera/lens that you would like to use in Capture One.
It is so great that CaptureOne has the ability to change between Fuji filmsimulation. Almost just like in camera or Fuji X Studio software.
The great missing part to get "accurate" color in CaptureOne to mimic the on-camera JPEG simulation are the Color Chrome Effect and Color Chrome FX Blue.
I find them to work great on most of my images (either set to weak or strong).
I have tried mimicing them in CaptureOne shooting a color checker and tweeking the colors in Color Editor. I have come close, but not close enouh.
If you could work out a professional presets / styles for these effects it would be great.
I Think a lot of Fuji shooters choose CaptureOne for great colors and the built-in Fuji simulations, but this would be the missing piece, in my opinion.
Vote away!