I'd suggest you should do it with NodeJS, as it will give you much more control. Invoke an API Call to your local NodeJS script

ReactJS

useEffect(() => {

   fetch(NODE_URL + "/execute-binary")
     .then(response => response.json())
     .then(data => console.log(data));

}, []);

Node Script:

var exec = require('child_process').execFile;

var funToExecuteBinary = function(){
   exec('gamelauncher.exe', function(err, data) {  
        console.log(err)
        console.log(data.toString());                       
    });  
}

app.get('/execute-binary', function(req, res) {
    funToExecuteBinary();
    res.send('Game launcher executed');
})