ThirdShifter Skype is dying and Signal will soon be dead. Signal is like the AOL in the 21 century.
Have you used Signal? It's elegant, and generally does what it sets out to do relatively well.
As a person that has a commercial AI product license that I use daily at work, generative AI is far from perfect. It's good to pad word counts, it creates decent business communication, but even in those roles it still gets quite confused. There's also no need for it to mediate private communication between individuals or groups of individuals.