I know I’ll get down voted for this, but from that site:
"Microsoft wants you to buy a new computer.
But what if you could make your current one fast and secure again?"
Kind of a sensationalized statement. I’ve upgraded tons of machines from 2015 and newer to windows 11 without issues. Sure, not all of them, but I’d say a majority of them, and the “upgrade” is free.
I guess I wanted to point out this piece isn’t as doom and gloom as it seems.
I think you should cruise this guy’s channel:
https://www.youtube.com/channel/UCg6gPGh8HU2U01vaFCAsvmQ
He’s very fair and uses all operating systems. I’m almost certain he’s had a video on this exact question.