Layman opinion here, I’m sure someone smarter will answer factually soon… I would think they would mount up and be plug and play. Couldn’t see ford using different harnesses. I do believe there was a setting in forscan for led vs halogen, but that may be more applicable to turn signal function.
I would look on eBay, as you may be able to find a cheap set of take offs.
if my truck ever shows up, I’m taking my led fog lamps off right away and installing my aftermarket bumper.