If you are okay with just having the card show an icon when that entity has images attached/linked then you can setup an automation like this:
- Add a single select field named:
Has Image
- To this field add a single option with the value:
...
or a blank space - Set the icon of this field to something like this: (picture) or (camera)
- Create an automation rule When > entity Updated & specific field used for images is changed
- Then > Update the field
Has Image
and set it to - You can then in the Board View toggle to show the
Has Image
field and cards with photos will now have an icon on them
This is a simpler version of the workaround I did for showing if a Board View card has a description: