I have those 2 pages that are created from a plugin:

1.https://www.domain.com/custom-page/?type=story

2.https://www.domain.com/custom-page/?type=movie

And i have been trying to target them
if (is_page ('custom-page') && ... )

with get_query_var by trying to pass the $qvars to add_filter( 'query_vars' but i am not sure how to do that.

Could some one help me how i could target those 2 pages?
Thank you