If you look up that FCC ID, however, it will usually turn out to not be the ID of the laptop. It will be the ID of the wifi adaptor, and it was the wifi adaptor maker that got the certification, not the laptop maker.

It is that wifi adaptor maker that is responsible for ensuring that the radio stays in compliance.

The laptop maker generally will only need to deal with the rules from part 15B, unintentional radiators. The laptop maker won't have to lock down the laptop OS.