XFCE-screenshooter. It comes with Mint XFCE and its never left me wanting. Source: about 2 years ago

I'm using xfce4-screenshooter because it came with the DE. It's deep-frying my screenshots, even when I send it directly to the clipboard instead of saving it to disk. Saving to disk uses .png not .jpeg and yet there's clear artifacting that I'd expect from jpeg. Example. Source: over 2 years ago

Can also be used in non-KDE X11 desktop environments. Which doesn't really explicitly say much, and in fact the only tool I could find that claimed to be able to support everything was ksnip, which seems to work fine with wlroots but beyond that https://github.com/ksnip/ksnip#known-issues outlines the situation well enough; KDE is at least only temporarily... - Source: Hacker News / 7 months ago

Ksnip is a simple and efficient cross-platform screenshot tool with all the essential annotation features. Whatsek raves, "Try ksnip! Went from greenshot to share, way too many features, found ksnip. Tabs... Awesome!". Source: about 1 year ago

Otherwise, the simplest solution is probably to either stick to the older Spectacle versions or use another screenshot tool like Flameshot or ksnip. Source: about 1 year ago

Ksnip - screenshot tool with annotation features. https://github.com/ksnip/ksnip. Source: about 1 year ago

Ksnip is a cross-platform screenshot and annotation tool. Source: over 1 year ago