What is correct procedure to remove freehub body?
It turns out that my freehub part was a type 49N Quick Release for which I have a hard time finding documentation. However, what I can tell is that I had to insert a 12mm hex key from the other side of the wheel. This 12mm HEX key was used to unscrew a bolt located inside the hub with the thread on the outside of the bolt holding the freehub in place.
Amongst the 5-6 tutorials I watched online, not even one mentioned the existence of that system. I found a replacement in a local bike shop so almost ready to go. Thanks.