They have a beautiful native macOS app as well. Also, excellent support for groups, including group URLs you can stick on a github page. Great program all around.
The latter lost bindings like ctrl-a, ctrl-u.
If I could be bothered, I'd delete the "Desktop" release and go back to the App Store version.
The Mac-specific App Store version is a better app, but has been abandoned in favor of the (crappy) "Telegram Desktop."
But I must admit that amount of clients is confusing.