Migrating from code-snippet | WordPress.org

Hi

I am thinking of migrating from code-snippet to your plugin.

I was testing one of php scripts that i have but it is not working somehow, maybe some lines to be cleaned up, not sure.

<?php
add_action( 'wp_head', function () { 
if (is_page ( array( '93285','93389' ))) {
?>
<script>

	jQuery(document).ready(function() {
		
		if ((window.pageYOffset) > 74) {	
    		jQuery('header.site-header.site-header--bb').css('background-color','white');		
 		}		
	
	});
	
	jQuery(document).ready(function() {
		window.onscroll = function() {
			var yposition = window.pageYOffset 	
			if ((yposition) < 74) { 
				jQuery('header.site-header.site-header--bb').css('background-color','#ffffff38');			
			}
			else {
				jQuery('header.site-header.site-header--bb').css('background-color','white');		
			}		
		}
	});
</script>

<style>
	.site-header {
    background-color: #ffffff38;
}
</style>

<?php } });

add_action( 'wp_enqueue_script', function () {
	wp_enqueue_script( 'jquery' );
} );

Can you guide me what to be adjusted?

One suggestion tho

Can you add a sample code for each different types (php, javascript, universal, html, block..) for beginners like me to get some ideas how it should look like?