No, what JohanT is saying is that if you ONLY shoot raw the preview that you visualize (both in camera or on your computer) will be limited only to the embedded low resolution contained within the RAW file.
This embedded low resolution jpeg is contained within the raw file for visualization purposes only but it confuses many because, being a very low resolution image, shows as being rather not sharp.
You can’t, in fact, see RAW files, that’s why you need a jpeg to “ see “ them and that’s what yyou will see (low res image) if you only shoot raw.
From what you are saying it is apparent that you have only previously shot either only jpegs or only raws but never both together.
This thing is not Fuji specific and you can see it on any camera, so whichever camera you have, if it shoots raw files you can see what JohanT meant.
