I think I am understanding you, yes, you can only message those who have moved or download those apps to speak with you.
For me, it was that simple. In my situation, I asked my friends at the time to download Signal – they didnt even want to download that. Only the closest to me ended up doing that. It turns out I am no longer friends with anyone who wasn’t using whatever I was using, so I have no need to go back to that. I never will even if I am asked. I’d rather even email lol.
So, anways I’m not saying necessarily there is any correlation between a true friend and someone who does not move apps with you. But I am also not not saying that.



That’s a good point