Agreed. I think the code examples in the article could do with showing before and after states of the branch or repo and maybe compare with standard git commands.
Even then I don't think the abstraction to HTTP verbs is necessarily a useful one as web requests and version control are two different mental models.
I think OP has envisioned a situation half way between what we now have and what will soon be the actual reality and that his idea will just be quickly skipped over.
I don't think website design will go away, but I do expect that people will soon be ordering products and booking holidays through AI chats instead of doing it themselves, which will require the kind of manifests he's talking about, but will skip the UI layer completely.
I had this problem and it turned out to be an upstream issue with MicroG which was eventually patched. If you have an error message you can search for existing issues on /e/OS' gitlab/forum.
Revolut stopped working for me for a while with the error that the bootloader wasn't recognised and rooted phones aren't supported. After about a month an OS update solved it.
My browser auto-declines cookies so I also had the same thought. On reloading I can briefly see a pop-over with a lot of text in it before it disappears, so I guess that is the cookie game I initially missed.
Even then I don't think the abstraction to HTTP verbs is necessarily a useful one as web requests and version control are two different mental models.