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Microsoft begins cracking down on people dodging Windows 11's system requirements
(www.xda-developers.com)
This is a most excellent place for technology news and articles.
I'd guess it's corporate circlejerk - they probably made deals with hardware manufacturers who are annoyed people are not replacing their perfectly functional systems with new ones. Windows gets pre-installed on new systems, and in exchange windows requires new things forcing people to upgrade their old systems - or be locked out of the most popular OS in the world.
This right here, the whole tpm requirement was most likely pushed from OEM's wanting to sell new hardware.