Hello MESHers. Has any web publisher (or blogger) made a substantial income from ad networks (like AdSense) without a premium¹ SEO plugin (like Yoast SEO) installed in their website?

I blog at unleash.co.ke. Attached are screenshots of some of the featured articles on my homepage.

¹ free versions of SEO plugins offer basic functionality. I want to learn how much difference a premium subscription offers.