All kidding aside from the other comments, Telegram is not secure or private. It's not E2EE by default and getting it enabled is per-chat and convoluted. Frankly, I wouldn't even trust it with cat pics I send to the bros let alone private messages... not to be fear mongering but do yourself a favor and get off Telegram.

Signal, despite some criticism that it's "Not private enough etc.", strikes a balance between usability, privacy and security. It's also miles better than Telegram on all fronts.

A big issue we have in the privacy community is that it's easy to have an "all or nothing mindset". Even small steps in the right direction can be hugely beneficial. So, Signal is great. Use Signal.