This is a feature of the Chrome developer tools I heard about in 2017, and it was probably the single best thing learned that year. I've written versions of this same post for internal audiences, because it seems relatively unknown. It's a feature that product managers will love - and we should be spending more time in the devtools anyway!

https://writing.daviddlacroix.com/how-to-take-a-full-size-screenshot-in-chrome/