How can I get field labels from submission data? I have created a custom webform handler by extending WebformHandlerBase. And I can get the data from the WebformSubmission. However, I can only get the machine name of the field. I would like to get field label. For instance, I get "fname" machine name as the key, but I want to get "First Name" or what ever label is set in the admin for this webform.

Does anyone know how I might get to that information from a webform submission entity?
I assume that you pass $form, and $form_state into your custom handler function. You can always access your webform field "label" via $form variable.

Try kint() or dd() $form['elements'] on specific form and go into depth to find your field, then you can easily get $form['elements']['my_field_name']['#title'] etc.