Windows: Press `PrtScn` to copy the whole screen to clipboard
Windows: Press `Win + PrtScn` to save the whole screen to a file
Windows: Press `Alt + PrtScn` to copy the active window to clipboard
Windows: Press `Win + Shift + S` to open Snipping Tool and capture a selected area
Windows: Press `Win + S` and search “Snipping Tool” to open it and capture/screenshot
Mac: Press `Command + Shift + 3` to capture the whole screen
Mac: Press `Command + Shift + 4` to capture a selected area
Mac: Press `Command + Shift + 5` to choose screenshot options (recording, window, screen, etc.)
Mac: Press `Command + Shift + 4`, then press `Space` to capture a window
Linux (GNOME): Press `PrtScn` to capture the whole screen
Linux (GNOME): Press `Shift + PrtScn` to capture a selected area
Linux (KDE): Use `Spectacle` from the app menu or press its default shortcut (often `PrtScn`)