Of course there it is [1], but Chrome doesn't support it and is essentially blocking its adoption. And it is not like MathML is too taxing to browsers; Firefox

Of course there it is [1], but Chrome doesn't support it and is essentially blocking its adoption. And it is not like MathML is too taxing to browsers; Firefox and Safari had a support for a long time and actually Chrome also once had a support before being dropped due to the instability! [2] The implementation is still underway but is not prioritized enough by Chrome developers. [1] https://www.w3.org/TR/MathML/ https://www.w3.org/TR/MathML/ [2] https://caniuse.com/mathml https://caniuse.com/mathml