Is it possible to use any of those functions get_term_by() / get_term() / get_taxonomy() or anything to get a taxonomy list filtering by a custom field? I can do that with get_posts just adding the following code:
'meta_query' => array(
'relation' => 'AND',
array(
'key' => 'activation_code',
'value' => '123',
'compare' => '='
)
),
Thank you!