Meh. Just like every other time in the past, when MS tries to "end support" for one of their most popular OS versions.....they will extend support.
They already have, so i read, for free, for 1yr (with the apparent catch of enabling Windows backup).
They tried to kill support for XP, 7, and that took much longer than they wanted/had first announced.
People will not give up 10 that easily. (i still know lots of places that still run Win 7)
That being said, I have been using Win 11 since beta. Minimal issues with it overall.
Win 11, is essentially the same thing as Win 10, Few minor Ui differences, that can be adjusted to look and work like Win 10 did. It is no where near a difference than 7 to 10 was.
If one wants a rock solid Linux based server, i recommend for headless, DietPi. If you want a more practical and useable desktop environment style distro, Linux Mint.