“a humiliating backdown after a goodly number of business users told Microsoft just where it can shove its shortened support offerings, because they’ll buy PCs when it suits them and not when Microsoft forces them to do so.”
See Business users force Microsoft to back off Windows 10 PC kill planTake that M$! You can no longer dictate to the world what folks will do with the hardware they own. That applied to me more than a decade ago. Now even businesses are standing up to you and complaining. You know everyone has an option to your software. That’s why you are embracing FLOSS on every opportunity and why you backed down when you threaten to cut off support. Threatening customers only works for a monopoly, which you no longer have.
I recommend businesses and others check out Debian GNU/Linux the operating system for those who want to control their PCs.