WP Selective plugin loading

plugin-load-filter.php

<?php
/**
* WP mu-plugin to control plugin loading
*/

add_filter( 'option_active_plugins', function($val){
	if(!is_admin())
	{
		$admin_only_plugins = [
			'plugin1/plugin1.php',
			'plugin2/plugin2.php',
		];

		foreach($admin_only_plugins as $plugin_path)
		{
			$index = array_search( $plugin_path, $val );
			if ( $index !== false )
			{
				unset( $val[ $index ] );
			}
		}
	}
	return $val;
} );