I think the fox 36 comes factory with this bike, what made you decide to swap them to the 38?
I am a heavy/aggressive rider so the stiffness will be helpful. Also the 38 is about 6-7mm taller axel to crown than the previous year 36. By going up 10mm in travel plus the extra height the front end is raised about 16-17mm. That works out to about what I lose by putting the 650b wheel on it. Basically keeps the front end and geo around the stock height.
Also its fox36 rhythm, which is a good fork but has no adjustments other than a compression switch - open, med, firm. If you like to tune your suspension you will want an upgrade for sure.