Hide QR code from email if event has virtual event url

example.php

<?php

add_filter(
    'tribe_tickets_plus_qr_enabled',
    function( $enabled, $ticket ) {
        if ( empty( $ticket['event_id'] ) ) {
            return $enabled;
        }

        $event = tribe_get_event( $ticket['event_id'] );

        if ( empty( $event ) || ! $event instanceof \WP_Post ) {
            return $enabled;
        }
        
        if ( ! tribe_is_truthy( $event->virtual ) ) {
            $enabled
        }
            
        return false;
    },
    10,
    2
);