Ranking 2nd from 31st for the same query on Google

SEO is...interesting. The query in question is "Bluesky Insights". I had a landing page without hammering keywords on it, and it showed up on the 3rd page on Google.

I then added an About page filled with SEO jargon and 1 day later, I'm ranking 2nd, not only for this query, but for other related ones as well