Hide Past Meeting Products from Shop and Other Pages

functions.php

<?php
function cm_exclude_past_meeting_products( $q ) {


	$args          = [
		'post_type'      => 'zoom-meetings',
		'posts_per_page' => - 1,
		'meta_query'     => [
			'relation' => 'AND',
			[
				'key'     => '_meeting_field_start_date_utc',
				'value'   => vczapi_dateConverter( 'now', 'UTC', 'Y-m-d H:i:s', false ),
				'compare' => '<=',
				'type'    => 'DATETIME'
			],
			[
				'key'     => '_vczapi_zoom_product_id',
				'compare' => 'exists'
			]

		]

	];
	$past_meetings = new WP_Query( $args );

	$past_meeting_product_ids = [];

	if ( $past_meetings->have_posts() ) {
		while ( $past_meetings->have_posts() ): $past_meetings->the_post();
			$past_meeting_product_ids[] = get_post_meta( get_the_ID(), '_vczapi_zoom_product_id', true );
		endwhile;
	}

	if ( ! empty( $past_meeting_product_ids ) ) {
		$past_meeting_product_ids = array_unique( $past_meeting_product_ids );
		$q->set( 'post__not_in', $past_meeting_product_ids );
	}

}

add_action( 'woocommerce_product_query', 'cm_exclude_past_meeting_products' );