Fractional scalingΒΆ
Fractional scaling allows scaling of user interface elements on the screen. 100% scaling is considered the native resolution of the selected monitor.
Launch the Settings application.
Click/tap on Displays. You should see several options available under the Scale section:
If the above options are not available, launch a terminal emulator and run the following command:
gsettings set org.gnome.mutter experimental-features "['scale-monitor-framebuffer']"