Good point. That’s there too (and it too contains the original LaTeX). Our cup runneth over.
I don’t know whether my browser (Firefox) is doing anything with the MathML. Right mouse “Open Image in New Tab” is present and opens the SVG but that doesn’t prove that Firefox is ignoring the MathML. Firefox is supposed to have native support for MathML, according to “the internet”.
(Edit: Using the Inspector tool within Firefox, the MathML elements don’t line up properly with what’s on the screen but are approximately right. It is as if it did invisibly render the MathML and then ignored that and displayed the SVG instead.)
Maybe I need to test the default browser on the Librem 5 … 