That’s actually a perk. Means the decryption key is not uploaded to telegram servers.
And, yes. The encryption all of the normies learnt to use for buying illegal goods while the prices were posted in wide open group chats. At least that’s how it was working in latin america with drugs.
I’m fine with only usb-c (I have never required charging while listening music). What I lack is a nice HiFi pair of wired headphones that go directly, without any adapter… And Bluetooth is not reliable, apparently, for HiFi audio…