Certainly not if one of your main concerns is the privacy of your message content. WhatsApp uses the Signal protocol; Telegram uses its own homebrew encryption protocol that has not been well vetted.
it is circumstantial evidence. Isn't it should be a red flag if one messenger is prohibited in a country with an authoritarian regime, and the other is not?
I mean that's enough for my social messaging. If I'd need to transfer some top secret information, I would use neither of them.