Telegram isn’t encrypted end-to-end by default; apparently if you do encrypt e2e you can’t access chats from multiple devices.
Signal’s protocol is widely understood to be the gold standard for security, which is one reason it’s been adopted for multiple messengers. Telegram has a bespoke protocol which is not as well regarded.
I agree with you as long as we also don’t end up boiling the oceans to get a mediocre picture of Luigi snacking on peanuts or whatever