Can I use Crosshair X in Rust?
In short, the answer is yes. Facepunch has not made any statements against the use of crosshair overlays.
Crosshair X and EAC:
Crosshair X is EAC compliant because it runs completely independently of any game process. The fullscreen overlay is achieved by using the Xbox Game Bar on Windows 10 which is a trusted overlay platform built by Microsoft. This allows Crosshair X to run completely independently of any game and process, making it secure and anti-cheat compliant.