If it’s not for a post, page or other post type then the values get stored in options table.
for categories, tags and other taxonomies the option name will be
“{$taxonomy_name)_{$term_id}_{$field_name}”, this is built the same way that you build the ID value to retrieve the value using get_field() or the_field() with the field name added to it.
Options are similar except that the field name is pretended with “option_”
