I have been reporting several bugs through the Feedback app you get access to when you are part of the beta program.
There is to many menus and no search option to find the right “department” to report to, so I have almost stopped giving feedback on bugs.
Author here, I used the Apple's Product Feedback page[0] countless times, I don't have the Feedback app since I'm running the _stable_ builds of all their OSes.
I guess the fixes have to start there first.