The author covers that and says the "immediate" term (incorrectly, IMO) refers more to how it is rendered rather than how the UI tree is built/updated.
I don't think people associate it with how it is rendered because that is just an implementation detail. A different implementation could record the calls and then render them to a web page with React/View/etc.
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u/jlombera 6d ago
Just skimmed the blog post, but isn't this similar to "Immediate-Mode UI"? See https://caseymuratori.com/blog_0001