In one of the previous patch you have added blinking notification when game was found. And it's great!
My suggestion: could you expand this so the game blinks also when game is about to start? It could be when jumping animation starts for example.
Reason: Both matchmaking and loading takes very long time so I spend this time browsing or working. And because it's not consistent how long I have to wait I can't predict when I should alt-tab into the game.