A lot of people I work with were affected, I wasn't one of them. I had assumed it was because I put my machine to sleep yesterday (and every other day this week) and just woke it up after booting it. I assumed it was an on startup thing and that's why I didn't have it.
Our IT provider already broke EVERYTHING earlier this month when they remote installed" Nexthink Collector" which forced a 30+ minute CHKDSK on every boot for EVERYONE, until they rolled out a fix (which they were at least able to do remotely), and I didn't want to have to deal with that the week before I go in leave.
But it sounds like it even happened to running systems so now I don't know why I wasn't affected, unless it's a windows 10 only thing?
Our IT have had some grief lately, but at least they specified Intel 12th gen on our latest CAD machines, rather than 13th or 14th, so they've got at least one win.