> Both Web Components and Framework Components utilize JS and HTML.

If you're writing them, certainly.

For web designers, using Web Components means not having to know JS, not having to know React, not having to know hooks, not having to know usememo, etc.

That's, to my mind, a large enough distinction: the requisite knowlege to reuse a framwork's components needs a full time developer. The knowledge required to reuse a web component is ... HTML (and maybe CSS?)