I genuinely appreciate everyone suggesting alternatives, but I'd humbly suggest that, from a normie perspective, "better UX" doesn't involve learning how to host or locate a server. There's a reason Reddit is still more popular than Lemmy. In my personal experience, getting a local org with some members that already had trouble using email and SMS onto Signal was difficult. Trying to get them onto an alternative that involved selecting a specific server or learning the technical details of different internet communication protocols would have been a nonstarter. I've gotten multiple Boomers to reliably use Signal, and they have no idea what encryption is.