I have had a read of what Lando provides, and it's an excellent development tool, and it would solve the problem.
But, I would prefer to find out why the problem is there in the first...
You might need to add a Relationship in the View to Flags. Or there might be a setting on the content type. I can't recall for certain but I think it's possible.
Comments
Can you post an image showing this?
I'm not able to reproduce on a clean install of Backdrop, and a view that displays nodes. The Configure View link is not shown to anonymous.