I use Signal. It's ok. I don't use it amongst friends or family because in the US we usually stick to what's installed by default on phones, which historically

I use Signal. It's ok. I don't use it amongst friends or family because in the US we usually stick to what's installed by default on phones, which historically has been SMS or iMessage. The only people in my life that use Signal are a couple of my clients. They are only on Signal because as they have confided in me, they are distrustful of the government. I can't really start a campaign to get people to switch to Signal, I don't have that much social capital to burn with my friends/family. And I personally would never use WhatsApp, and while I understand the history of its ubiquity, I can't bring myself to pull myself back into Mark Zuckerberg's ecosystem.