[2021] Any way to report after a game?

Sadly, in-game reports are necessary for it to be filed properly. As you can see in the game rules, it is mandatory for all offenses: https://forum.deadbydaylight.com/en/kb/articles/139-game-rules I'm sorry, I know this is not the result you wanted. For the future, please ensure to report them in the game and then you can send the additional evidence to support.