Good report, very important thing to measure and I was thinking of doing it after Claude kept overriding my .md files to recommend tools I've never used before.

The vercel dominance is one I don't understand. It isn't reflected in vercel's share of the deployment market, nor is it one that is likely overwhelming prevalent in discourse or recommended online (possible training data). I'm going to guess it's the bias of most generated projects being JS/TS (particularly Next.js) and the model can't help but recommend the makers of Next.js in that case.