How do meta tags influence seo?

Meta title, Meta description, and Meta keywords are html language that are written inside your website and they are also known as Meta Tags. It influence optimization process in which helps the search engine understand your website is all about.

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It doesn't help to increase the page rank buddy and page rank metrics was also shut down by Google

The Meta tag is an On Page SEO issue. It important because it increases your SEO score.
Meta tag is important for Google and your visitors. It shows the summary of your content and people will get ideas about your topic because meta tag appears in search engines results pages.
Thanks for your hint.
Munna Hossian, Mytechgoal.

Meta tags are HTML attributes which is an understandable language of Google bots.

Metadescription its a little import but not so much .Best thing you can do for seo ,wite and article amazing and you will see resultd google will like that

If you want your site to rank, first sign up with google analytics and incorporate it into your website, then link it with google search console. From there you can do all kinds of tests through google's web tools to optimize your site for ranking, including doing a Fetch and Render (this shows you how google-bot sees your site vs how a user on the internet sees it). You can do this for both desktop and mobile versions of your website. Once that is done, you can request your site be indexed by google, which will speed up the process, instead of waiting for it to happen naturally which could take weeks or longer.
Meta data is important, but don't rely on it too much for keyword searches, and don't try to "stuff" your code full of keywords to try and rank your site, doing so will get you google-slapped.

Meta tags are found in the code of your site, and are not visible to the ordinary user but rather exist in the background. Meta is short for metadata and implies that these tags give information about the data on your website.

There are two types of Meta tags: meta description tags and meta keyword tags. Meta description tag is intended to give a short clarification of the contents of a website page. The meta keyword tag is intended to give search engines the topic of a given site page.

Google may, in any case, utilize your meta description for your web page's listing on the SERP page.

Certain niche businesses likewise require meta keyword tags to appropriately arrange themselves in directories. There is a proviso, however: While Google may not utilize meta tags to impact the position of your site in the SERP, you can hurt yourself by overusing them. Keyword stuffing was an early SEO strategy, yet Google rapidly got savvy and underrate and in the end overlooked keywords. Overdoing it can really bring about giving a negative ranking sign to Google and other search engines modern algorithms.

Remember that utilizing meta keyword tags can likewise give your rivals a thought of which words and phrases you are focusing on, giving them possibly valuable strategic data. At last, it's dependent upon you regardless of whether the little potential reward of utilizing meta keyword and description tags are worth the potential risk, and obviously justified regardless of the time investment in appropriately set up.

Meta tags are a piece of text which describes the web pages' content in detail. They don't appear on the page, rather only in pages' code. Meta tags are mainly important because they are found at the top of every page in the header.
There are basically 4 types of Meta tags in SEO such as
1. Meta Keywords
2. Title tag
3. Meta description
4. Meta robots