Like all things it’s a spectrum. Many developers (most these days) are a commodity. The truly talented are not, and are uniquely good at their specializations.

Just like tradesman. A generic electrician journeyman for residential break/fix work is more or less a commodity these days. A specialized electrician who is known to be an expert at rehabbing 150 year old knob and tube wiring on a historical mansion is not.

It’s interesting to me how developers fought so hard to commodify themselves though? When I started my career in my early teens no one at all put jobs up for a “programmer” - it was nearly always a “C programmer” or “COBOl programmer” and most developers focused on one or two languages as experts. Then there was usually even further specialization on top of that as well!

Sometime after the dot com boom devs decided that if you were a developer worth anything at all you could pick up any language and be productive in it within weeks or months in nearly any role or industry. I’ve always thought this was insane.