Earlier quoted context omitted.
But it's not e2e encrypted.
How could you access end-to-end encrypted cloud storage from multiple devices? It's still encrypted, and in multiple jurisdictions so a legal order in any single jurisdiction only decrypts one layer of encryption. "Telegram is a cloud service. We store messages, photos, videos and documents from your cloud chats on our servers so that you can access your data from any of your devices anytime without having to rely on…
By sharing your key between the devices.
> a legal order in any single jurisdiction only decrypts one layer of encryption
That's good to know, but it's not the cutting edge of security. (For many people it's of course enough)
> They also offer end-to-end encrypted secret chats
Not on desktop and not on GNU/Linux phones (which I use).