I tried it today for the first time. The onboarding is okay.

I picked Whatsapp but it ended up using my own account! So it's absolutely too dangerous. We are supposed to create a separate account but with which phone number? I only have one.

So I picked Telegram instead, added it to a group chat, but it was a slog to set the authorizations.

In the end I don't trust it to read my mails for security reasons so I uninstalled it!