Windows pushes update with no internet?

Yes the computer was hooked up to my hotspot over a week ago. The computer has been run at least 3 times since with no internet connection. I would have had to manually plug in my phone which has Graphene OS and instruct it to tether. Which hasn’t happened in over a week. Unless it was some sort of delayed update that waited to install a week later. What’s unnerving is there’s no updates in history the day this happened. The last recorded update was the beginning of April. I have heard intel hardware can create an internet connection on it’s own. But I don’t remember where I saw that. When this ghost update happened, the only active internet around would have been neighbors wifi hotspots which I have never been connected to. Also, wifi was disabled along with bluetooth. Anyways, thanks for the responses.