I'm not debating whether there are issues. Any sufficiently complex system will have issues, and those having issues will be very vocal about it. But I'm pretty sure it's not worse, or unacceptable.
By and large macOS is extremely stable and robust. Based on my both experience and hundreds of employees using Macs over a 10+ year period. We'd undoubtedly have had more support issues if we had used Windows, as an example.
> I'm not debating whether there are issues
No, you're debating whether "most" users have issues, which was your claim. I don't bother complaining to the IT people at my company because of fundamental issues in the OS that they can't do anything about, so I'm not sure your data implies what you think it does.