most of the fuji cameras have a unique color array compared to the rest of the camera world, something that has some advantages and disadvantages.
earlier in the introduction of the x-trans sensor, there was real problems with 3rd-party software failing to translate that color array well. this is would usually manifest in the odd rendering of distant green foliage (small green details were being slightly scrambled). the issue was always less pronounced to nonexistent using the Fuji jpg engine (which is excellent for a bunch of reasons).
over time, I think this has gotten better. I know that adobe has updated their processing algorithm for the fujis several times to some effect. the increased resolution of the cameras has also helped mitigate some issues. I think people still claim they run into the problem occasionally, but I don’t think it’s a big aspect of owning fuji cameras anymore.
edit - I should add that if you’re willing to deal with on-camera jpeg processing, fuji cameras have I think the class-leading color processing and white balance, so long as their color profiles (film simulations) appeal to you. the only instance I wouldn’t recommend them is if you have a robust and complex raw processing flow that demands the most flexible and neutral raw at the start of processing.