I don't use it a great deal, but if you try it you can see why you'd use it over...

danmur on Sept 14, 2021 | parent | context | favorite | on: Firefox Browser: best for a free web

I don't use it a great deal, but if you try it you can see why you'd use it over the OS screenshot. The easy answer is you can take a screenshot of a while page, or more than the portion that's showing.