you could also use BTT's clipboard manager. If you copy a image from one note you can pinch to zoom in fluidly. It also allows to edit images via markup and to copy text from images.
You could also create a shortcut to copy the image and immediately show the clipboard manager, e.g. like this:
It should even allow to open quicklook on a copied image or file, but that seems to be broken right now (or I have disabled it intentionally and forgot about it - I'll check.)