Thank you for your answers.
I have checked my camera and I think the settings for NR were +2 and the same for sharpening.
I then decided to make a few tests, reducing both of them. And mainly only playing with the sharpening and choosing a 0 value for the noise reduction (on all pictures).
And still I can't really say I am happy with the rendering of the pictures. Also It seems I have a lot of problem with focusing. quite a few pictuers seems to be a little soft and/or out of focus.
There is still really something strange with the jpg rendering.
Here under you can judge:
Some jpgs are direct from the camera. Some of them are RAF exported as jpg with minimal to no editing at all as those pictures are only test picture (so nothing fancy here).
Also I have noticed when opening my RAF in Luminar 3 a strange black line on the right of most of the (raf) pictures???
So far I am really disapointed with my buy. I also dont really like the EVF it is quite small for me (smaller and less practical then my x100f)
Help is really welcomed as I am a little lost here.
THANKS
x-T30 - F/4 - 1/500 - ISO 1000 - from RAF to JPG minimal editing.
x-T30 - F/4 - 1/500 - ISO 1250 - from RAF to jpg minimal editing
RAF to JPG but strange black line on the right side
xt30 - f/4 - ISO - 1000 - 1/500
There is a problem on the shirt ( shoulder ) of the guitarist with no cap.
X-T30 - F/10 - 1/200 - ISO -640 - From RAF to JPG . No editing - Acros+R
SAME but direct JPG - ACROS + R
I find the rendring here strange
X-T30 - F/11 - 1/250 - ISO 200 - From RAF to jpg - NR 0 - Sharpening 0

Same but JPG only
X-T30 - F/7.1 ?? - 1/250 - ISO 200 - JPG from camera - ACROS + R - NR 0 - Sharpening +2
X-T30 - F/11 - 1/250 - ISO - 400 - JPG from camera - ACROS + R - NR 0 - Sharpening +2
My conclusion is that the RAF files exported to jpg are a little better in definition.
But can't say I am over excited with what I see.