This is a frequent symptom on websites that consist of more JS than HTML: they often won't even let you scroll the page without a mouse, let alone have UI that's visible to plugins(I never tried it, but I'd bet these same sites would also appear basically empty to screen readers etc.).
https://greasyfork.org/en/scripts/40897-old-reddit-please
Works great in Violentmonkey/Greasemonkey.
That part the cynic in me sees as obvious: easier tracking with the perms that most apps require, so they can command a higher price for any ad impressions.
I think the same is true for a great many apps that could be replaced by a well constructed site or, if offline use is needed, a PWA (the argument of supporting old devices is moot: if your phone is too old to run a well written PWA reasonably then it probably isn't new enough to be well-supported by the related native app either).
Gotta put in https:// always.
Not sure that counts as major.
Also, the main sites for the BBC, New York Times and Washington Post all work just fine without javascript and in terminal-based browsers (I'm partial to emacs' eww.) In my experience javascript is not necessary for a great many websites, including some major ones. Most links I click through from HN work fine without javascript, although there is some selection bias there.
During 2000s, Opera Mini created a great web browsing experience over 56k dial-ups.
Since it’s a proxy/VPN, it also gets around paywall limits.
Gets me every time.
Except this happens to me when I’m running low on my Canadian dataplan and need to ration data because of economic failure limitations, not true physical ones.