Google SEO Now Harder Over The Past Few Years?

There is an interesting thread starting up at WebmasterWorld talking about what has changed specifically with SEO around Google over the past few years. Specifically, why techniques they used back in 2016 no longer work in 2018.

Google algorithm Update History by seoravindra

From past years on wards Google introduces difernt types of algorithms for user getting SERPs results. Here I am explained the most important algo changes and penalties rolled out in the past years