For all the improvements to Windows that have come from Microsoft thanks Nadella & co., it is still rather shocking to realize Windows has no public bug tracker, and no real way to report these issues besides screaming loudly and hoping someone in Redmond hears you. It's even worse customer service than Google, which is quite an achievement.
If you are a paying enterprise customer of Microsoft you can get very good support. I briefly worked for a company that ran their compute infrastructure on Windows (~2000 physical servers), in the month I worked there they had multiple tickets open with Microsoft. If I remember correctly, one was for excess memory usage and Microsoft dug through a memory dump to find the problem.
I hear Google has improved for paying enterprise customers, under Diane Greene's leadership, but they certainly burned some bridges in the past with poor support.
Public bug trackers are super helpful for professionals, but the lack of one isn't necessarily an indication of poor customer service.
[1] https://support.microsoft.com/en-us/assistedsupportproducts