I'm playing with the idea of circular navigation but I'm not sure if it is a good implementation.
Any guidance would be appreciated.
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Pie menus (which is the name of the control) can be a good navigation pattern in certain instances. They are for example utilized in Android camera app, where the user presses on the camera view port and a pie menu appears, swiping to one of the items expands that item into sub menu items.
It's a good navigation approach in instances such as this, when you want to hide the controls but still make them accessible efficiently utilizing the area of the display.
However, there are some drawbacks: