Proticols dont do any thing. Platforms/implementations do. Im not knocking XMPP, there are extentions that support e2e, I was just saying that is core to Matrix spec and thus every implementation.

Heck, I’d think Matrix, Nostr, and XMPP would better than email, which itself is better than shudders propritary “social” media, or plutocrat accounts like Google, Apple, or Microsoft.

I mean OIDC is the standard. SAML is the legacy. Email is just the current defacto messaging platform for accounts so I see no reason Matrix couldnt be.

ActivityPub isnt built for private data, nor IRC. XMPP can but again not its primary design focus.

The best case i can think of is that most of the big tech that IPOd probally helped more users even if they over all quality didnt go up. Kind of hard to measure though. IPO give the company cash but at the trade of stakeholders.