You are very much mistaken about the state of multiple monitor support on Linux.
I probably am, all I know of it is what I've read. I don't have first hand experience with multiple monitors in Linux. I do have first hand experience with the double monitors at work, under Windows. By afternoon, alt-tab stops working. I don't know if thet's Microsoft's fault or the video card's fault, as they're using the software that comes with the card.
When they first installed the second monitor, Windows thought there were three of them. I had to go in and remove a driver to make it work.
I don't believe you. Hardware updates are optional
I had it set to automatic update, and went through hell trying to find out why I couldn't get on the internet. I thought the cat had broken the modem (it was on the floor the morning it broke), the ISP saw the modem and thought it was the network card. I thought maybe a cable, and had I not reinstalled Windows because XP had disabled the software that came with my CD burner, informed me of it with one of those annoying balloons on every boot, and wouldn't let me uninstall it I would have bought a new networks card.
I stopped letting it update automatically after that, of course.
If you load a help option in a Linux program, more often than not it launches your web browser and takes you to a site with some documentation with chapters listed in the ToC but whose contents are "This chapter has not been written yet."
Yes, I've run across that.