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.

How to Set Up

1
Make sure your version of Windows 10, the Microsoft Store app, and the Xbox Game Bar are fully up to date.
2
Download the app from either Steam or the Microsoft Store (Free trial)
3
Setup the Game Bar Extension by following the in app tutorial under the ‘Exclusive Fullscreen’ tab.
4
Choose your favorite design or make your own. Any design you select will automatically import to the designer so that you can adjust it to your liking.