It seems lately every piece of software is getting more and more vulnerabilities, failures, crashes. Microsoft products are exceptionally high in the list.

I don't understand why they wouldn't give a pre-release patch to the bug reporter (especially if it's someone like Google) for them to analyse before doing a final release.

If they were actively working with Project Zero instead of being seemingly silent, this wouldn't happen

This is where FOSS is still winning and will always win. Fixed happen in the open and bad fixes can be called out