If so, is there any mechanism for the public to report bugs or is that just included in https://www.apple.com/feedback/?
Technically, you need a developer account and be signed into it to use that mechanism.
Apple Bug Reporter is a web-based tool that developers can use to report issues with Apple software and services, request enhancements to APIs and tools, and track the status of their feedback. To access Apple Bug Reporter, sign in with the Apple ID associated with your developer account.
The general public would use the public facing feedback page https://www.apple.com/feedback