X series ISO Inflation

I think there is a difference in the metering methods between many cameras - not just the Canon and Fuji. Has been for years ....

There is also a difference in most DSLR metering methods, in comparison to on-sensor readouts of mirrorless cameras. With evaluative metering common on most modern cameras it is difficult to see if the 'correct' exposure accords with the camera's database of lighting conditions.

A number of my cameras record differing exposure results based upon use of spot, average or evaluative metering. The final resulting image will be similarly 'biased' based upon mode used.

Unless the image is screwed or totally off-base, I'd assume slight differences (and one-stop is slight) to be merely a result of differing metering technology or modes therein.

At the end of the day, it is the user - not the camera, or a comparison between cameras - that decides if exposure is correct.