Hello, you can search for the arched circular cabinet in the custom system cabinet module - Design Library - Basic Cabinet - Circular Cabinet. The screenshot of the search location is as follows:
You can also directly search for the cabinet placement design by entering "circular" in the search bar.
Note: If you want to modify the height dimension of the arched circular cabinet, you need to uncheck the Open Process Dimension Limit in Tools - Settings - Customized for the Whole House. Otherwise, modifying the cabinet size will cause it to deform.