Full screen

• PrtSc – Save a screenshot of the entire screen to the Pictures directory.
• Ctrl + PrtSc – Copy the screenshot of the entire screen to the clipboard.

Custom Region

• Shift + PrtSc – Save a screenshot of a specific region to Pictures.
• Ctrl + Shift + PrtSc – Copy the screenshot of a specific region to the clipboard.

Current window

• Alt + PrtSc – Save a screenshot of the current window to Pictures.

OMG this changed my life. I was still using kazam for this !

About Flameshot : it gives useful features for fast editing after taking the screenshot 👍