I havent tried the mirrorless cameras but on dslr canon is great ux imo. Everything you need to adjust on the fly is easy. Its usually controlled with a dial that can change the parameter it adjusts with a modifier button. Saving you what might be yet another dial on like a fuji xt5.

But even then once youve metered a scene how often do you adjust iso on the fly? Hardly ever. Fixed iso, aperture priority, center dot focus and metering, off to the races.