What is the easiest way to tell what resources a settler is assigned to in Fallout 4? [duplicate]

Solution 1:

No, unfortunately there is no overview of what all of your settlers are doing. The only current method to see what a settler is assigned to is as mentioned in your question.

See also: Can I see an overview of my settlers?

Solution 2:

As mentioned in the answer in the comment, hovering over settlers will highlight the resources they are assigned to.

Additionally, if you hover over a resource, you can check the information window. If the settler symbol in it is red and not green, there is no worker assigned to it and therefore, it won't do anything.