It would be a good idea to take advantage of the big screens of desktop machines and be able to open multiple chats in a side-by-side style.
A good next step can be to open chats in tabs.
Similar Features
Currently Telegram Desktop (the cross-platform version written in C++) has a feature to open a chat in a "new window".
Illustration
This is a high-level wireframe of the requested feature.
It would be a good idea to take advantage of the big screens of desktop machines and be able to open multiple chats in a side-by-side style. A good next step can be to open chats in tabs.
Similar Features
Currently Telegram Desktop (the cross-platform version written in C++) has a feature to open a chat in a "new window".
Illustration
This is a high-level wireframe of the requested feature.