Even it they (WhatsApp) still provide reliable E2EE, they have lots of metadata that is not encrypted, and that they actively share with their “advertising partners”.

Mojeek does that, AFAIK.

Sadly, I think it’s the road Firefox is going to take. The things in the ToS are vague, when they could easily be clarified, and that is an act of bad faith towards its users. That might give an opportunity for Mozilla to use some of the things against the userbase.

The problem is that using vague language makes people suspect, because companies nowadays tend to move towards enshittification.