Hi, an arXiv HTML Papers developer here.

As a very brief update - we are pending a larger update.

You will spot many (many) issues with our current coverage and fidelity of the paper rendering. When they jump at you, please report them to us. All reports from the last 2 years have landed on github. We have made a bit of progress since, but there are (a lot of) more low-hanging fruit to pick.

Project issues:

https://github.com/arXiv/html_feedback/issues/

The main bottleneck at the moment is developer time. And the main vehicle for improvements on the LaTeX side of things continues to be LaTeXML. Happy to field any questions.