hey @mburlinson! If this filter will always be the same you can enable the fs-cmsfilter-showquery setting, perform a search on your target page, copy the url, and set this url to the button on your project page.
CMS Filter will load the list with the filters from the query applied to it
@mburlinson! I see you have added the query params script and attributes to the page, this is causing all the checkboxes to be added to the filters.
This script is not needed as CMS Filter can handle the query params natively. you can test by removing the script from the page, publishing and visiting the Projects page link