Function try_guess_proton 

pub fn try_guess_proton(game_path: impl AsRef<Path>) -> Result<bool>

Guess whether a game is running under Proton (Linux Steam Play), returning errors.

This is the fallible version of guess_proton. On Windows it always returns Ok(false).

use loadsmith_platform::try_guess_proton;

match try_guess_proton("/path/to/game") {
    Ok(true) => println!("Likely running under Proton"),
    Ok(false) => println!("Native Linux or Windows"),
    Err(e) => eprintln!("Error checking Proton: {e}"),
}