There was a time when off-page SEO could be done very easily. Because if you could only create backlinks in three ways, a website could easily rank in Google. But a recent update to the Google Rank Brain algorithm has made it more difficult for a website to rank on Google.
Before 2019, if any type of NoFollow link could be created on a website, Google would rank the link of that website seriously. But as a result of updating the Google ranking brain algorithm, Google is no longer paying any attention to NoFollow backlinks. At the same time, Google is not giving any importance to those DoFollow links which are not relevant. In addition, Google does not consider backlinks as relevant backlinks that do not generate traffic to the website.
So if you think that just commenting on the comments section of someone else's website will increase your website's search ranking, then you are still living in a fool's paradise. On the contrary, if you link to other people's websites without any reason, your site's ranking will be down.
At the same time, Google used to give importance to the post of a website only if it was shared on different social media. But Google is now saying that you don't just have to share posts on social media. After sharing the post on social media, the post with the highest engagement will get the search ranking. And a post that does not have any kind of engagement will not be able to contribute to the ranking increase even if it is shared on social media.