Launching a game with a custom launcher that isn't using unity but also loads the proxy dll like https://store.steampowered.com/app/868550/What_do_you_hear_Yanny_vs_Laurel/ will abort the launch process. If you still want it to abort on other issues than NotUnity, I could alter the PR for that condition. The current handling probably breaks more games.
See #618
Launching a game with a custom launcher that isn't using unity but also loads the proxy dll like https://store.steampowered.com/app/868550/What_do_you_hear_Yanny_vs_Laurel/ will abort the launch process. If you still want it to abort on other issues than NotUnity, I could alter the PR for that condition. The current handling probably breaks more games.