custom field - ACF Relationship - Get Parent's Post Object - WordPress Development Stack Exchange
GitHub - circleb/ACF-Post-Object-Elementor-List-Widget: A WordPress Plugin that adds the ability to display the contents of an ACF Post Object field as a list of post links.
Nested dynamic content from ACF - what are the best practices? - General - Cwicly
Post_object - Advanced Views v3 Docs
acf/fields/post_object/query inside repeater filtered by taxonomy sub_field - ACF Support