I looked on the Lutris scripts upon the Wine Steam (the python scripts), I found that on default it makes a 32-bit prefix setup. I actually changed the default to 64-bit prefix and yeah it makes it so. It would seem the check for that precise moment to see what Architecture it should be (32-bit or 64-bit) in standard it automatically chooses 32-bit.
Since I executed Lutris by terminal I found the files it was reading, the python files (I could replicate it but that would mean I have to destroy my wine steam right now). I did not record it sadly… I should though.