Use it for the moment, not the whole document
A menu that is open, a hover state, or an error visible right now belongs in This screen. Full page is for everything below the fold; it may move the page and change temporary states while it works.
A short route through the popup
- Open ScrollSnapshot on the tab you want.
- Choose This screen and press Capture.
- Review the result, then copy or download it in the format you need.