It's good that Chrome is finally on track to provide MathML support (which Firefox has had since version 4), and as of version 91 supports counter styles (Firefox supports it since version 33), but I wonder how much of that will happen if/when Chrome is the only actively developed browser on non-Mac platforms, resulting in WebKit/Blink being the only engine developed for the web.
I'm also concerned about what will happen in regard to the web standards, given that the browsers have abandoned the W3C in favour of continually changing documents, and only seem to be interested in the needs of web browsers. That makes it difficult for other uses like in ePubs to steer the direction of HTML and the associated standards.