I’m not buying the vast conspiracy theory. The simple reason this is occurring (and likely will again) has everything to do with the open nature of Windows. Android has the same types of issues as well, which is why there is a proliferation of "legacy/unity’ builds for no longer officially supported phones.
Apple has it easy here for two reasons in that they are the sole source of Apple devices and also that since 2012, they started “signing” their OS releases.
And ALL chromebooks have a defined end of life date from the outset.
And you can’t over estimate the human error factor of a company as big as MS and which makes as many products, to simply screw something up. It will happen again I’m sure.
And BTW: absolutely anecdotal at this point, but we have installed 11 on a few "unsupported " systems such as 6th gen core I. And we’ve seen some significant issues such as a glitchy stuttery UI, or more worryingly blue screen crashes when systems especially lower end/spec ones make extensive use of virtual memory. (which got significant improvements in 8th gen Core I).
I’ll fully admit that for better or worse I support the idea that companies really have no choice, especially when you factor in the ever growing list of vulnerabilities to explicitly obsolete older hardware.
Plus, perhaps because I’m " in the industry" I hear from all the OEMs that we and our customers work with the idea that their hardware has an " expiration date". It for example is the basis for why up until the last couple of years, business leasing on systems settled on a 3 year cycle which essentially says that they should start thinking about replacing them.
However all of the OEMs and MS themselves has been timid/terrible in messaging that to consumers.
Apple is much better at this, but only because they can, because they control the entire widget.
I know it sounds like I’m making excuses, but I’m really not, it’s more just acknowledging things as they are. And I think that’s part of the price we have paid for the arguably astronomical rate of improvement in PC and phone tech compared to any other industry. Take cars for example.