Example of SearchWP's searchwp_get_supports_for_post_type hook

functions.php

<?php

// Prevent SearchWP from allowing an Excerpt weight for Posts on the settings screen
add_filter( 'searchwp_get_supports_for_post_type', function( $applicable, $context ) {
	if ( 'post' === $context['post_type'] && 'excerpt' === $context['supports'] ) {
		$applicable = false;
	}

	return $applicable;
}, 10, 2 );