That other post is just plain wrong. LLMs are just about the only thing that can meaningfully benefit from having access to almost all the code your environment is built from. If you're on Linux, the agents not only have all that code accessible in web search, but also almost certainly include most of it in their training data.

If anything, agents are an opportunity for the "Linux year on the desktop". Granted, I don't personally believe Linux needs to have that year; it's just fine without any mass adoption there. It's simply no longer that important a segment. I thought most of the debate around that also died out years ago (perhaps even a decade?)

Still, I recently had the opportunity to compare how Codex configures macOS and Fedora for the same task, and the latter was a bit faster and significantly cheaper (in tokens). That's obviously anecdata - maybe the particular task was overrepresented on one side or something - but I wouldn't be surprised if this was a more general trend.