Thanks everyone ! I didn’t expected so many answers 
OK I’ll stop using Microsoft Photos then 
@marter, I didn’t calibrated my screen, I changed my RT to the “system default” and it makes a huge difference 
, now the pics in RT and Microsoft photos look pretty similar.
So I tried again with the output profile as RTv4_sRGB, like you guys suggested and have almost no difference in the saturation if my RT is set to “system default”. But if i’m in “no monitor profile”, then the saturation is different.
I opened the RTv4_sRGB picture with google photo: the image is close to what I have in the RT preview set on “system default”. I tried opening it on XnViewer and it is much more saturated, like the RT preview on RT preview set on “no monitor profile”.
However when I tried uploading in instagram, it’s horrible how desaturated the image looks
So in the end I think the problem is the output profile and the RT setting like @marter suggested. Now that I have the preview and the JPG that looks the same, it’ll be much better to edit 
Thanks again for the help