Oddly, when capturing a page from the Tools menu, the screen shot is always saved as PNG, not JPG.
(VB-34841) Save Capture to File from Menu Always saves as PNG
PNG is usually better for pages of text, and high quality JPG is overkill for thumbnails of pages that are mostly images. It might be better not to have to choose, but just to use whichever format is set for capture full page.
I don't see any screen capture when copying text to a note, unless I click the camera ion. Then the screenshot always seems to be a standard size in pixels, independent of the page size.
Specs: AMD A10-6800K, 8 Gb on Win 10 64-bit β’Snapshot 1.16.1170.3 (64-bit)