exclude multiple post type from sitemap

I followed this doc (https://developer.yoast.com/features/xml-sitemaps/api/#exclude-specific-posts) to exclude single post type from the sitemap index file.

Q1) Here is the list from my https://mydomain.com/sitemap.xml. How do I confirm the ‘post type’ name? I assume it would be “poll”, “da_image”, “category”, etc?

https://mydomain.com/post-sitemap.xml	2023-02-06 13:03 +00:00
https://mydomain.com/page-sitemap.xml	2023-03-01 20:51 +00:00
https://mydomain.com/event_listing-sitemap.xml	2023-02-27 16:39 +00:00
https://mydomain.com/docs-sitemap.xml	2023-02-07 20:18 +00:00
https://mydomain.com/poll-sitemap.xml	
https://mydomain.com/da_image-sitemap.xml	2022-11-17 13:02 +00:00
https://mydomain.com/category-sitemap.xml	2023-02-06 13:03 +00:00
https://mydomain.com/event_listing_category-sitemap.xml	2023-03-01 23:35 +00:00
https://mydomain.com/event_listing_type-sitemap.xml	2023-03-01 23:35 +00:00
https://mydomain.com/doc_category-sitemap.xml	2023-02-07 20:18 +00:00
https://mydomain.com/doc_tag-sitemap.xml	2023-02-07 20:18 +00:00

Q2 ) However, i’m not sure how to exclude more than one post type. When I write the code like below, but the result does not exclude those post types

function sitemap_exclude_post_type( $excluded, $post_type ) {
return $post_type === 'poll';
}

function sitemap_exclude_post_type_two( $excluded, $post_type ) {
return $post_type === 'category';
}

add_filter( 'wpseo_sitemap_exclude_post_type', 'sitemap_exclude_post_type', 10, 2 );

add_filter( 'wpseo_sitemap_exclude_post_type_two', 'sitemap_exclude_post_type', 10, 2 );