>> 2. Killing Windows Phone by not allowing any Google-based apps on the platform (https://www.theverge.com/2017/7/14/15970082/google-killed-wi...)

I honestly had no idea about this one. The Windows phone and Microsoft clearly had other issues with their mobile platform, but this clearly did not help. Most people I know said they wouldn't switch because most of the Android apps weren't available on the Windows app store.