Hello @educos35,
Yes, you can pass Form Set ID in query parameter and redirect user to this specific form set using this code in Custom Routing editor:
const queryString = window.location.search;
const urlParams = new URLSearchParams(queryString);
//FormID is the name of teh query parameter
const formSetId = urlParams.get('FormID')
if(formSetId ){
return formSetId ;
}