I've been "Doing nothing" at work for a couple of weeks now, and it's freaking me out. Yes, I have asked for tasking, but the guy in charge is ... I just don't know.
And the best part is that since it's not an assigned task, nobody is waiting for it, so I'm under zero pressure.
Sadly it doesn't happen that much as we're always pushing for more new features out.
Easier to sit back and not do anything.
And I work on the backend in a smaller company these days. Our backend code doesn't pass through QA, we just write tests and another backend coder reviews the tests if new tests are written. QA only handles frontend.
After that, yes it'd make sense to find something else.