An algorithm is a complex system designed to retrieve data from Google's search index and present the best results as quickly as possible. For each search engine result page (SERP), a combination of algorithms and ranking factors determine where web pages are ranked by relevance.
Latest Google Algorithm:
Google has confirmed the May 2022 core algorithm update is currently rolling out. Updated core algorithms attempt to provide users with more relevant search results.
This was the last big update of 2020 and the first major update since May of that year. As with all of Google's core updates, the December 2020 core update affected websites and SEO globally.