Rust, the massively popular and quite brutal survival game from Facepunch Studios is working towards Easy Anti-Cheat support for Linux and Steam Deck with Proton.
This has been a long-time coming, as they previously removed support for their Native Linux build but confirmed back in July of 2021 that they were working on getting it running properly for the Steam Deck. In a fresh update reply to a user on Twitter asking about Easy Anti-Cheat, Facepunch head Garry Newman mentioned how "They're working on it, maybe next month if it turns out to be stable enough".
Good news for fans of Rust and Linux / Steam Deck, considering it is still one of the most popular games on Steam and has remained so for years.
You can buy Rust on Steam.