But it's not what matters (at least, until you have hundreds of pages ranking).
Google Search is very similar to LinkedIn, TikTok, Facebook and Instagram in the sense that the better your UX metrics are (time on-site, pages visited, return visitors, etc) the more visibility Google will give you in the SERPs.
For most SaaS, there aren't a few valuable keywords, there are hundreds of valuable pages representing thousands of keywords to drive a qualified audience.
This means after you learn how to create highly valuable content, the next step is to scale your publishing velocity to increase your footprint in the SERPs.
I've brought 4 websites from 0 to 100,000+ organics/month by focusing on creating more reader value than any other page of content Google could show for the keywords I want to rank for, and publishing hundreds of pages of content.