The irony? Actual cheat engines worked fine for weeks, while paying customers couldn't use their RGB keyboards.
: For those still facing issues, players discovered a "feature" of the Ubisoft Game Launcher where adding -eac_launcher to the game's launch arguments can sometimes bypass the EAC initialization, though this disables all online and co-op features. Current Status for Modders
The primary anti-cheat mechanism for the PC version is Steam's VAC.
Ubisoft never officially confirmed the reason, but community consensus suggests it was a cost-saving measure since the game's multiplayer population had dwindled. The Result: The game now runs "almost out of the box" on platforms like Linux/Steam Deck
EAC in Far Cry 5 has a history of false positives with: