Some of my closest friends and I moved to Telegram a few months ago. It's actually quite good. I've to be on WhatsApp as it'd be a pain to teach parents how to use a new app!
Since a few months (now that Telegram has failed to deliver on the encryption promise and profit model for many years, making it a bit too shady) I've been moving more and more to Signal (after also trying Keybase, Threema, Wire, Riot/Element, Jami/Ring, and evaluating others), but man usability and features really take a hit with any of them. Enjoy Telegram, but be aware of the trade-off!