So if you use Firefox or Brave on an iPhone, you’re simply using Safari with a different “skin.” This skin can clearly do some content blocking, and it can provide a different browser UI — but it cannot change the fundamental web technologies that are available in the browser.
As such, Safari is basically the new IE6 — it lags all other modern browsers and prevents websites from taking advantage of nice new features. (Yes, some of these features are available with polyfills but others are not polyfillable.)
I wish the author had noted this, given the high visibility of the NYT. More people need to know about Apple’s neutering of browsers on iOS. It’s crippling the growth of the web.
One specific example: Safari still doesn’t support AudioWorklet, which means iOS users get lower-quality slowdown in my product Soundslice (a feature we rolled out last week: https://www.soundslice.com/blog/199/introducing-enhanced-slo...). If more iOS users knew about this, perhaps they’d lobby Apple for better web support.