The Element Inspector in your browser seems like a tool only meant for developers, but you can do some cool things with it even if you don’t know any programming.
I’ve used this often for saving images for my blog. But you’ll probably also appreciate, after reading the linked post, why you can’t just blindly trust screenshots someone sends you.
As with all technology, it can be used for both good and bad purposes.
See https://www.howtogeek.com/cool-tricks-browser-element-inspector