saying that my legitimate copy of Windows 11 was at end of service
The screenshot says the version you use reached EoS and you need to update. There’s absolutely nothing about invalid licenses in the screenshot.
Good job for getting upvotes on a “haha winblows bad” troll post, I guess.
The author acknowledges that, the blog post seems to be aimed at demystifying the concept of namespaces by showing that a “container runtime” that only does limited filesystem namespaces (using chroot) is enough to get some widely used containers running (of course without all the nice features and possibilities of the other types of namespaces)