Default system wallpapers are stored in /usr/share/rpd-wallpaper/ . You can add your own images here using the sudo cp command in the terminal to make them available system-wide. Changing the Background: Right-click on the desktop and select Desktop Preferences .
While most users are familiar with standard resolutions like (Full HD), the 1191x670 resolution typically arises from: 1191x670 Raspberry Pi Wallpaper">
When accessing a Pi remotely via RealVNC , the viewer often defaults to a window size that accounts for taskbars and window borders on the host machine, resulting in this specific cropped dimension. 1191x670 Raspberry Pi Wallpaper">
For the best fit, set the to "Fill" or "Center" to avoid distortion. 1191x670 Raspberry Pi Wallpaper">