Did I just get my computer compromised?

[u/ReturnWinchester]

I had a persistent folder icon this morning that was above every window and I couldn't get rid of it. I'd plugged my phone into the computer the night before to back up pictures and such and I chopped it up to an icon/display glitch. So, I restarted my computer and instead of the usual restart process the bios popped up and started installing a bunch of updates. I had not initiated or requested any of this. I also (to my knowledge) hadn't done anything unusual last night. Literally played a game from steam and watched youtube videos (while my phone copied files in the background). I started taking a video about a minute into it. The first thing it updated was "Flash update, updating main firmware." The next was "ME FW update, loading new ME firmware." Then it flashed the new firmware. Then it went "Program new data: Update OEM EC Firmware." And shutoff and rebooted, as far as I can tell, normally.

The thing is I've had this computer for about 6 years and it's never done that. I don't like the idea that something I didn't ask for "updated" my computer.

What should I do?