I use the Signal desktop app as well as the mobile app. On desktop, you can only message others who also use Signal. On the mobile app, you can use Signal in place of your normal SMS app as well, so in your contact list, you will see your entire addressbook.
Over the last three days, the number of contacts from my phone who have switched to Signal seems to be increasing as I'm noticing new contacts available to me via the desktop app which signifies a switch. These are just normal, every day people. Not particular tech minded and as far as I know, not too political.
Seems like a good thing for sure, and I'm curious, has anyone else noticed this?