Picture in Picture, but with a screenshot instead of a live view

### Problem

I'm using the PiP (Super+F) feature a lot. But some times I need a Picture of the same Application which is not easily doable. For example I want to have multiple views in a single pdf which are more than 1 page apart. Currently i need to open the same pdf multiple times to view them.

### Proposal

By using a new shortcut (like super+shift+f) and selecting a selection a screenshot is made, which can be used like the PiP which is possible now.
It needs a different design to differentiate it from the existing PiP. My idea would be a new icon in the top right or middle.

### Prior Art (Optional)

_No response_