Makes sense. Big Tech are the only ones pushing for Secure Boot because it gives them control over our machines. With that they will be able to garden-wall our PCs the same way they do with our phones.
Fortunately, my phone (Librem 5) doesn't obey the Big Tech. Neither does my Laptop.
And the author worked at Redhat when he wrote the article in 2021.
Yes, but there were suspicions that he was involved with MS at that time, I heard.