fish question

Technically anything that's had humans involved in its preparation has been processed to some degree. Food processing is a spectrum, the idea being that stuff that's more processed tends to have less nutrients and more calories. Ultra processed food is stuff like chocolate, sweets, pastries, etc.

Minimal processing has happened with the above fish other than it being breaded, which will add excess calories. So if you wanted to make it a bit healthier you might try for non-breaded. The most unprocessed version is going to be getting it fresh from a local fishmonger.

Yep, that's definitely a better option.

Yeah the original you posted is certainly not muck. If the worst that people were eating for dinner was some breaded fish, we'd be in a much better state of health as a society.