As I said in my other answer: our facet filters are nothing more than hidden inputs in a form. So nobody consults "the state of multiple facet dropdowns", excep

As I said in my other answer: our facet filters are nothing more than hidden inputs in a form. So nobody consults "the state of multiple facet dropdowns", except htmx when it generates the URL of its XHR call. Everything else (filtering items according to querystring parameters, fetching user favorites, etc.) is done on server-side.