I /remembered "Snipping Tool", so I searched for "Snip" and launched that, and it shows a menu that says like "Snipping Tool is deprecated, use Snip n Sketch" so you click that and a new app opens (but old one stays open as well) and you take your screenshot and then its open in a window that you have to go and save.
I know I'm biased because its what I'm used to for 10 years, but on Mac I just have the (insane) cmd + shift + 4 shortcut engrained that'll snip a part of my screen and save to my Desktop. It's just so much quicker than Windows.
re opening file: I miss Quicklook to make sure I have the right file selected. Also miss being able to drag a file into an open dialogue box to select it to open.
Copies it into the buffer, silently. No notification, nothing. Great UX.
In Ubuntu it's even better, it actually saves it as an image file (and does the annoying shutter effect). But the repeat key is not turned off... so if by any chance you hold it down by mistake, thinking it was the right ctrl, oh boy, you get a shitstorm of shutter effects and dozens of screenshots in the pictures folder. Very annoying. I don't know which I hate more, Ubuntu or Windows.
Do you expect Ctrl+C to not be silent either? Because that's what PrintScreen and all the other clipboard operations were designed as.
Unfortunately it's one of those things that is incredibly useful but isn't mentioned anywhere.
But the touchbar lets you touch a single button, off-screen, and then clearly choose between these options: https://support.apple.com/en-au/HT201361
Former is PrtScn key on my keyboard. Microsoft ships Snipping Tools and lately Snip n Sketch for screenshots - never had any issues with either.
Latter - not sure what you mean - opening the right file as in setting default program to open a file? That's easy enough and it's the best experience on Windows.