What Web Can Do Today?

Too many of those features are literally not on any standards track (Background Sync, User Idle Detection etc.)

Too many of those features are literally Chrome-only non-standards that both Firefox and Safari oppose and won't implement (WebUSB, WebSerial etc.)

And yet, as is the case with such lists, they are presented as actual standards and used in the crusade against anything non-Chrome (which implements all those and enables most of them by default)

I'm on the fence. While I think some of these features should be absolutely not part of a browser's scope, I think there will always be legitimate use cases.

What I'm absolutely convinced of is for better controls. A little more than a year ago, our government required the banking industry to know their users' locations for some reason. So now the banks ask for my location, otherwise I can't login.

While on a mobile device it would be quite hard to give them a fake location without rooting/jailbreaking, in my browser I could find a reputable, open source extension [1] that helps me protect my privacy.

These kind of controls should be part of each of these features, without risking installing an extension with nefarious intent.

1: https://github.com/chatziko/location-guard

The more I learn what web can do, the less I want any of it.

> permissions

Yes. All or nothing.

What is missing from the list is RCE and priviledged access to the OS.