I have used Signal for many years as well, I am now trying to move away from it because while the security is nice, it lacks a good backup/restore mechanism. All the critical data I recieved or sent on it is encrypted and even with the same number and pin it can't "merge" or import specific backups! The thick log that broke the camel's back for me was having to keep an android phone specifically for Signal usage because you can't import android backups on iPhones. Somehow they have resources to create a cryptocoin and other features I have no use for but basic reliability needs, at least for me is not met by this app.

I would like to say to each his own but the nature of communication apps makes them useless if others don't also use it. The typical response I get for this is some form of whataboutism. I will just use whatever else I find for now until they figure out a way to monetize it and care about user needs (such as not mandating phone numbers and being able to register the same number on multiple devices so I can use it on iPhone for example without stopping android usage) or some other app like threema will gain popularity like Signal.