Because PHP forums have clunky UI. Unless you’re used to them and know they contain good, rarely astroturfed/shill info, a web search is most people’s go to, leading to:
how do you upgrade 2016 Toyota Highlander suspension
LLMs like ChatGPT are tailored for that kind of ‘monkey using magic box’ method that is prevalent, but it’s still the same issues of bad info or SEO content bloating results without user feedback