Carview!

Uses	Description
WP_Query::is_feed()`wp-includes/class-wp-query.php`	Determines whether the query is for a feed.
_doing_it_wrong()`wp-includes/functions.php`	Marks something as being incorrectly called.

Used by	Description
wp_should_load_block_assets_on_demand()`wp-includes/script-loader.php`	Checks whether block styles should be loaded only on-render.
wp_should_load_separate_core_block_assets()`wp-includes/script-loader.php`	Checks whether separate styles should be loaded for core blocks.
WP::handle_404()`wp-includes/class-wp.php`	Set the Headers for 404, if nothing is found for requested URL.
wp_die()`wp-includes/functions.php`	Kills WordPress execution and displays HTML page with an error message.
redirect_canonical()`wp-includes/canonical.php`	Redirects incoming links to the proper URL based on the site url.

is_feed( string|string[] $feeds = '' ): bool