When and why should we choose rounded corners over smooth corners?

Smooth corners are gaining more and more attention recently in UI design. enter image description here

As a designer of iOS mobile apps, I recently tend to design only with smooth corners as it just makes the look and experience much nicer. Also, looking at iOS's design language in the past few years, it seems like iOS uses smooth corners everywhere in the system. Here's an example from iOS Control Center:

enter image description here

My question is, should we sometime prefer "regular" rounded corners over smooth corners, and why?

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