all-user end-to-end encryption on services like Zoom in China,

Zoom is selling out its majority userbase (free users) by forcing those users clients to use fake non-e2e-encryption. And there are some big names involved in advising them to do that, and continuing to advise them when they should be quitting in vocal protest against Zoom and the surveillors and the Four Horseman FUD they're all shilling.

because of the Chinese govt’s likelihood of intercepting

China hardly such global advanced actor in that as USA. But it sure makes great TV news to distract you from Power over you, doesn't it. Gotcha.

The US’s NSA can crack any encryption in the world and listen to any communications it wants.

There is rational debate. Yet any such capabilities, for which there are plenty historical reference of earlier programs, are only used in diplomatic and quiet observatory spheres, to get the drop, to headoff and pretext the masses, etc. Presidential and higher levels only, never anything vanilla obvious like court cases (not even capability to de-location-anonymize tor via traffic analysis and sybil gets approved for exposure in court). Until someone posts the jewels, you won't know many capabilities directly, and far too many people have taken Governments dirty laundry and secrets with them to their graves. Shame upon them. Of course China wholesale rapes its billion "citizens" with its surveillance, opensource observation set, commercial partners, targeting capabilities, same as USA does... against everyone in order to maintain political power and control over free humans. Who would entirely discard notion of such not so surprising a conglomeration of effectives, now happening at near realtime fiber speed these days instead of horse and buggy delay. These "tap and surveill it all" policies and programs tell you there is, among other things, something quite fun you should be doing... encrypt everything by default and if they try to thieve, shutdown, jail, and murder you for it, which they will... then instead of taking the knee and partner with such false "authority" of Government like Zoom did, all the while proselytizing some Four Horseman bullshit FUD... rise up, overthrow the governments, and dont start any more of them. Your incessant adoption of their political memes and systems of enslavement over you, such as democracy... seems slowly fucking you over, sapping your beautiful free human life force. Much more rapidly now by using their centralized technology the last 25 years... WeChat, WePay, Central Banks, identity, travel, registration and permission and digital tracking schemes for everything you do, forever... an endless list one could make of your own diminishing freedom and demise at their hands, using your technology. Long since due to wake the fuck up and revolt en masse. You didn't need them or it decades to millenia ago, and you don't now, or ever in the future. Till then keep watching TV news and politicians, telling you it's about China, Russia, USA, Black vs White people, whatever it is you're supposed to believe from them each month... No, it's ongoing creep of Power over you. And it's working. Not least made obvious by fact Zoom probably gave away another 10M free editions of its scamware to wildly cheering unsuspecting users worldwide last month alone. Where indeed are those leveraging technology toward a real state of Liberation? Apparently fallen to readying "voting" machine "technology" in five months to support even more of their "democratic" force, theft, prison, and murder over other harmless people. Kudos "Liberators". BTW, YouTube just got forced to delete another major distributed cryptocurrency channel. Wake Up!!!