There's one. It's Signal. I keep telling people to use it and they keep not, because people are less likely to do things if they've been told they should do them.
To add a datapoint I can share mine: it's me who would be in a position to bootstrap the change in my circles, but I wouldn't use or recommend Signal as Whatsapp replacement until the core features are on parity, including history backups, which have always been a lagging userstory for Signal.
I think they have different (and somewhat opposing, even) targets, Signal wants to be extremely privacy protecting, and it's a disservice to their goals to sell them as a replacement for WhatsApp, because they're not.
Signal is so much worse than WhatsApp from a UX perspective. Backup sync forces you to allow background permissions (WhatsApp doesn't), you have to set and get nagged to enter a PIN every few weeks (WhatsApp doesn't), there's no transcription for audio messages (WhatsApp has that for some languages), the desktop app loses its connection if you don't open it ever few weeks (WhatsApp works fine), etc.
You are moving the goal post. But you're right: Signal's E2EE is miles better than telegram's.
I was just trying to point out my experience in getting people to switch, most of the time they have different prioirities.
