This is a huge list of "features from Chromium", which aren't really standard or even a thing outside of its ecosystem (the fact that both Firefox and Safari lack them is the obvious giveaway).

I'm happy that Firefox doesn't expose Bluetooth, NFC or similar stuff to websites: the browser is huge enough without needing to mediate even more access to local hardware.

It's unclear how some of these would even work for other Browser. E.g.: contacts. What data source would you use? I keep my contacts as vcard files in ~/contacts, but other folks might use a remove CalDAV server, a web-based GUI, or data stored in SQL which can be read by some other native client (I think KDE does this).