The framing assumes the ratio of "problem-and-solution" projects to "personal-brand" projects has shifted. I'd push back: I think the underlying ratio is roughly the same — what's shifted is what gets published.

The work of running an open-source project (issue triage, security disclosures, contribution guidelines, CI, release cadence, dependency maintenance) is way higher than the work of solving the original problem. People with the "here's my private workflow tool" mindset increasingly don't publish at all because they can't afford that tax. Meanwhile, anyone seeking brand-building benefits IS willing to take it on, because the brand-building is the point.

So the visible OSS landscape over-represents the brand category not because solution-sharing died, but because solution-sharing acquired a 10x maintenance overhead that most people now opt out of. I see it in my own dotfiles — full of small tools I'd happily share if "share" still meant "drop a gist." It doesn't, anymore.