I tried to report issues with a broken VP9 decoder causing system instability in MediaToolBox on my Mac Mini but I need to pay 100$ to even get a chance for an Apple tech to see this issue in their developer forums (not that they engage much with their developer community at all).
Apple is shipping broken software left and right ever since the ARM transition and it's become noticeable.
You are as likely to have an Apple engineer create a bug report for you on Apple's forums as you are here.
http://feedbackassistant.apple.com is where you file such requests. Just keep in mind that the wall they have between public and internal systems means you may not get updates unless you periodically ask for them.
Apple is shipping broken software left and right ever since the ARM transition and it's become noticeable.