I know this is an troll by a user where they type "gg" or some random sht like that and then type something like this below to possibly deceive the enemy team into throwing, but I have never seen one with colors like this. Does anyone here...

There should be something that appears in the kill feed when a phoenix ult is killed. Usually, the only way to know is by looking at the ults or a teammate comms, which aren't very reliable. It would just be a nice quality of life change.