Google knowingly made their search results shittier and shittier for years in pursuit of improved KPIs, to the point that alternative search engines are better, and so are LLMs that occasionally hallucinate or outright crash.
unfortunately this extends to youtube too. now they have a new shitty trick. you click on the link and they randomly give you a completely different video.
Revenue comes from ads.
So making paid ad results more relevant for the click, than ensuring high quality organic search.
Maybe, the more valuable the paid ads, the worse the organic rankings.