One of the features of Wayland is its security design, which helps to guard the user against malicious apps. Apps can no longer see everything on the screen and spy on you. But that also means you cannot run a common application (like shutter or gtk-recordmydesktop) and use it to make a screenshot or a screencast of your desktop - it will see only its own window, but nothing else (or it might crash right away). System (trusted) apps need to be used to perform these actions.
In GNOME, you can use Screenshot tool (available in overview or as Printscreen hotkey or as gnome-screenshot command) to capture a screenshot of the full desktop or a particular window. You can press Ctrl+Alt+Shift+R keyboard shortcut to start video recording of the whole desktop (stop it by pressing the same shortcut again, there's an indicator in the upper right corner, or it stops automatically after 30 seconds by default) and find the screencast in ~/Videos. For screencast, you can also use EasyScreenCast gnome-shell extension.
Всё из-за wayland
https://fedoraproject.org/wiki/How_to_debug_Wayland_problems#Screen_capture_is_not_available_with_usual_apps
Screen capture is not available with usual apps
One of the features of Wayland is its security design, which helps to guard the user against malicious apps. Apps can no longer see everything on the screen and spy on you. But that also means you cannot run a common application (like shutter or gtk-recordmydesktop) and use it to make a screenshot or a screencast of your desktop - it will see only its own window, but nothing else (or it might crash right away). System (trusted) apps need to be used to perform these actions.
In GNOME, you can use Screenshot tool (available in overview or as
Printscreenhotkey or asgnome-screenshotcommand) to capture a screenshot of the full desktop or a particular window. You can pressCtrl+Alt+Shift+Rkeyboard shortcut to start video recording of the whole desktop (stop it by pressing the same shortcut again, there's an indicator in the upper right corner, or it stops automatically after 30 seconds by default) and find the screencast in~/Videos. For screencast, you can also use EasyScreenCast gnome-shell extension.