I believe Q's asking us to use Ghidra because of the use of video games for elite comms. Go through first party Microsoft games, Disney games, etc to search because I have an inkling game devs put special features in the code to hide elite comms. Ie, it's fully known that the games are being used for this purpose and the game devs are in on it.
I believe Q is asking us to use Ghidra to look into video game code due to the use of game chat for elite comms. The games may have specific code injected (NOT NECCESARILY BY GAME DEVS) as safeguards for the elites. Meaning, game devs themselves may not put this stuff in, but higher ups do.
I would look at Microsoft first party games, Disney games, chinese mobile games, etc.