I do use whatsapp but only for contacting individuals or if I want to call someone from my bedroom as I have shite reception there. i don't really do gossippy group threads (not that I've ever been added to one), though we do have a family one since covid for sharing photos, but no real chat. I have recently been encouraged to drop it for security purposes. Have installed Telegram but haven't used it yet. I have used briefly, and then uninstalled, Signal, as I found it very unreliable with messages taking ages to send/arrive