Imagine for your favorite puzzle games, you can take screenshots and easily make little notes and attach pictures within the steam client. Write some text, and draw some squiggles.

Why is this useful? It'd simply be an alternative to cluttering your desk with physical notes. And sometimes you'd really wish you could just take a picture of the game and attach it to your little notes.

I'm thinking of this after playing Blue Prince, and having pressed F12 to take screenshots over a 100 times, and my desk is covered in paper. It would be really cool if i had an easy way to collect notes and pictures within steam.

This is simply a suggestion : -)
Probably a lot would prefer to keep everything physical, and this is silly. But perhaps the doodle and note features could be used for stuff other than just puzzle games. Maybe keeping strategies written down. Or a way to pause the game and easily draw a funny hat or a moustache on top of a screenshot you took.

let me hear your thoughts!