ACF has a handy acf/load_field filter for programmatically filling the choices of field types like 'Select' that have multiple values.
This Pro tutorial provides an example of how to set the values of a Select-type field with the names and labels of all public post types in the site.
Notices how Choices are empty.
Now let's use the acf/load_field filter to automatically populate the choices with public post types minus attachments and Bricks templates.
Result after implementing the tutorial:
