The content is decisive for your Internet users. When you make a website, you must always favour the user experience (accessibility, ergonomics, meeting their expectations…) because this is what will ensure the durability of your business.
However, it is clear that the increase in popularity (by increasing the number of links pointing to your website) accelerate the SEO of your website.
These links must be made naturally by internauts and not be created artificially to increase your ranking. It is therefore by creating unique and innovative content that you will increase your SEO. Everything is connected in a virtuous circle.