Also needed but it seems that the ACF integration is not available with the Search text field.
It’s stated that the integration
- Automatically retrieve choices set in ACF or Meta Box fields and display them as options in Filter – Checkbox, Radio, and Select elements.
- Filter – Datepicker: Access ACF and Meta Box date and time formats without requiring manual configuration.
Nothing is said about the search text field which would be needed to search in the content of an acf field.
Hope it could be added.