> I’m also interested to see if it enables cellular in laptops
Are WWAN cards not a thing already? I've never looked much into them at all, but they do seem to exist, at least (and seem to be around $20-$50 and plug into M.2 slots)
And when laptops do have a spare M.2 slot it's usually intended for an SSD only and is not the right kind of M.2 slot for a cellular (or WiFi) card. And of course, you'd need antennas. So the whole laptop needs to be designed around accommodating cellular connectivity, with significant changes to the internal layout.
