tl;dr:"Good alt text means that screen reader users get the same 'meaning' from the page as a fully sighted user." Context and emotions matter. "Images can make you feel a particular way, and that's something that should be made available to a screen reader user."
tl;dr:AVIF is a new royalty-free image format derived from the keyframes of AV1 video supported in Chrome 85, and others soon. Although initially skeptical, Jakes highlights advantages over existing formats.
tl;dr:None of sites are built on JS frameworks, they are mostly Drupal or Wordpress with lots of jQuery, none pre-load fonts. This article audits each site providing in-depth advice on performance improvements. 🏎️