Date2

$meta_query = array(
	'relation' => 'OR',
	array(
		'relation' => 'AND',
		array(
			'key'     => 'is_referidos',
		),
	),
	array(
		'key'     => 'fecha_ini',
		'value'   => '2022-09-16',
		'compare' => '>=',
		'type'    => 'DATE',
	),
	array(
		'key'     => 'fecha_fin',
		'value'   => '2022-09-16',
		'compare' => '<=',
		'type'    => 'DATE',
	),
);