Still wondering - my company uses Macbook Pros for everything, and as a Principal IT Systems Engineer, I'm certainly a power user. However, I mostly work on systems remotely, i.e. just SSH sessions or CLI tools to work on servers, so I don't really need this power. But so far, a Macbook Air was way too lightweight and the screen too small to work productively.
But with the Macbook Air 15, I might as well request this instead of the latest Macbook Pro 16 when I'm due for a new device next year. Not really sure I care about any of the differences in spec - other than maybe the extra ports and the ability to connect a second external monitor, but I guess I can life with both. And while the Macbook Pro 16 has considerably better specs, My 2019 (Intel-based) Macbook Pro 16 seems about on par and spec-wise I'm still more than happy - just battery life and heat are problems.