First, create Checkbox/Select/Radio filter with the "Posts" data source.
Select the needed CPT from the list:
Then, click on the Dynamic Tag icon near the Query Variable field and choose the "Plain Query" variable, where you need to insert 'p' inside:
'p' is a parameter name from WP_Query. You can find more information here: https://developer.wordpress.org/reference/classes/wp_query/#post-page-parameters