[dieulot]

What would a specific table of contents element bring over a <nav> inside your <main>/<article>?

(As demonstrated in the first example of https://html.spec.whatwg.org/multipage/sections.html#the-nav...)

[threatofrain]

I'd look to what Wikipedia provides as a document reading experience. The problem with nav is that there weren't enough tags so developers will rightly use them for other things, such as breadcrumbs. I'm looking for exclusive ToC that will allow reader mode to go further.