[adventured]

> Is it because it has the Microsoft name attached to it or just because AWS has so much traction?

Yes on both counts.

Also, the perception is common that Microsoft = Windows Server, to a very high degree of bias. Thus, if you don't operate on that platform, you'd immediately disregard Azure. A lot more work is needed to convince non-Windows operations & developers to buy into Microsoft's offerings around Linux. Emphasis that that says nothing about the quality of existing offerings, rather, the issue is of perception. The perception is that Linux is and will always be a secondary concern with Microsoft; and potentially worse, skepticism over whether Microsoft will invest into and support Linux over the very long term. If one buy into that skepticism or doubts Microsoft's commitment to Linux, AWS is immediately a superior choice as a long-term platform bet.