I keep hearing this, and I know Azure has had some issues recently, but I rarely have an issue with Azure like I do with GitHub. I have close to 100 websites on Azure, running on .NET, mostly on Azure App Service (some on Windows 2016 VMs). These sites don't see the type of traffic or amount of features that GitHub has, but if we're talking about Azure being the issue, I'm wondering if I just don't see this because there aren't enough people dependent on these sites compared to GitHub?

Or instead, is it mistakes being made migrating to Azure, rather than Azure being the actual problem? Changing providers can be difficult, especially if you relied on any proprietary services from the old provider.

The assumption is it would be mistakes in their migration - edge cases that have to be handled differently either in the infrastructure code, config or application services.