During the 1-minute countdown before a match begins, it would be helpful if you could hover the cursor over an ally (their name, their civ selection button, or something else) in order to see their selected civilization’s tech tree preview somewhere. And by Tech Tree Preview, I mean the one you see during a game by hovering the cursor in the top-right. That way you can quickly see their selected civilization’s team bonus and tech tree, instead of needing to memorize them or needing to click quickly. The preview wouldn’t display if their civilization selection is set to Random.
They should show this in tech tree and tech tree preview too. Also, the civs in use should be grouped together at the top in tech tree.