Currently, ACF provides no built-in way to expose custom fields in WordPress's Quick Edit panel. Adding this requires significant custom code workarounds.

Add a per-field option (e.g. a checkbox in field settings) to enable a field in Quick Edit. Basic field types — text, number, select, checkbox, radio — would cover the majority of use cases. This would save editors a lot of time when bulk-updating posts and is a frequently requested workflow improvement.