If I’m not mistaken, we can see in the picture (Mongols civs) and the buildings available to them, but they cannot be seen.
(Then the developer exits the game and the loading slider has started, either from the right or to the left).
(This is definitely not the main menu of the game, but in the menu of the editor of the card or the list of servers).
(As a result, he pressed something and the download started again).
(A menu came out where everything is very similar to the menu of a regular game where you need to select a mode and a map along with civilizations just like in (AoE 2 DE).
For a long time I tried to see what was written there, but I could only see the colors (blue, red), (yellow 3 pieces) and green.
(He chose yellow and opened a list of maps and selected one of them. ).