I'm wondering to this day why web browsers don't run a full text search index locally. Only saving urls and titles is not enough. Especially if I spend more tha

I'm wondering to this day why web browsers don't run a full text search index locally. Only saving urls and titles is not enough. Especially if I spend more than a minute on a page I would like it indexed. And today being today, I would also like a LLM on top.