Your mileage clearly varies. Like many people here, I also work in tech. Even before the WhatsApp privacy policy fiasco, there were a good few dozens of my contacts on Signal. Afterwards, there was a push like I haven't seen in all the years I've been using it.

Like many people, I'd definitely prefer having just one messenger, but now I simply use Signal with everyone that's on it and only have to open WhatsApp a few times a week. This entire thing has to be seen as a process IMO.