Earlier quoted context omitted.
This is a misrepresentation, before even getting into lack of modern feature support, webkit introduce a lot of long lived regressions on each release and Apple have changed various behaviours in non-standard ways in Safari over the years then left them broken and unpatched on old devices (looking at you autoheight iframes). This has nothing to do with adopting standards and everything to do with a lack of resources,…
Lack of modern feature support? This is beyond parody. "What point are you trying to make here? iOS users have no choice but to use Safari." Android users use the browser on their device -- any browser -- less than iOS users use their browser(s). Read the Google corporate propaganda repeated on here, and other platforms provide a web bliss of PWAs, freed from app subservience. Only, not at all.
Can't harass users with notifications.
Safari can open a pdf up like a native webpage in a tab. Until one of the Android browsers can do this out of the box (without having to use a ridiculous fork of Firefox so I can install extensions Mozilla doesn't want me to and installing pdf.js extension to use their own project), it will always be the superior browser.