CS:GO Update: Panorama UI Available for Testing
In the newest update for the test server Valve presented a complete overhaul of the user interface, which is called Panorama UI and is built using parts of Source 2 engine.
According to the CS:GO developer John McDonald, Panorama UI has been the focus of the dev team since 2017. It replaced almost all of the UI elements, including main menu, lobbies, inventory, in-game, etc. To test it, you need to opt into a CS:GO Beta Depot. Currently the build only support “Practice with Bots”, you can also practice with friends by joining a party.