Hacker News Reader

Also it works under Windows XP unlike most of the competitors with poor quality Electron apps.

and the clients are not electron (QT on linux and works super well!).

is it as safe as end-to-end? no. but the convenience is just too great.

Telegram's clients are nominally open source.

What more could you want?

Clients that are actually open source, updated on time, and have source code that actually builds?