So, this is only to some degree Microsoft's fault, but yesterday, we were basically on a workshop at $DAYJOB to learn about a hardware setup, which had some crucial software on a Windows PC.
And because you can't run updates in the background on Windows, the internal IT has a nagware program to remind you, that you should stop working and install an update.

And like, truly nagware. It pops up in the middle of the screen, overlays all other windows, but also minimizes them, and the only way to close it, is to either go ahead with the installation or to click "Defer", which makes it ask again in 5 minutes.
It then also unminimizes your windows, but does so in the wrong order, so a different window will end up on top.

But what truly made this a unique experience was that there were like 8 updates it tried to install. Each of those updates had its own nagware pop-up with its own 5-minute-timer, so we get one of those ridiculous pop-ups every 30-45 seconds.

Eventually, we did realize that it was different updates it was trying to do (and not just a BIOS update which had failed twice already), so we could make it go ahead with the installation of some of those updates, which reduced the nagware pop-up frequency somewhat.

But yeah, for innocent me with my Linux laptop, this was still absolute bedlam. Just genuinely a moment of "How the hell do you get any work done?".