Posts can't be filtered through 'Related Entities' in Advanced Find like activities.
We have a common requirement identify posts related to specific record /records with specific post. Similar to activities . Activities can be filtered through regarding field/related entities.
In the post regarding field is there but it is not filterable like for activities. Also does not appear in related records.

Although timeline can display related posts but end users looking for filtering option in advanced find so that they can find posts for any record/vice versa.

Is this possible to provide to such feature like activities ?.