You don’t need to use the meta keywords tag when optimizing your website for SEO compatibility, Google hasn’t supported the meta keywords tag since 2009. It doesn’t even have any effect.
<meta name="keywords" content="seo, search engine optimization" />
It uses the Google meta description tag to generate a snippet of search result pages.
Google search representatives, who have not used the keyword tag for many years, have shared an explanation video on this subject several times.
In the video released by Google on September 21, 2009, Matt Cutts explains that the meta keywords tag is not supported.
When asked how much time should be allocated for keyword meta tags, Matt Cutts says there is no need to use this tag.
Years later, on March 15, 2022, another video by John Mueller says that Google still does not support the meta keywords tag.
Like Google, the Bing search engine does not support the meta keywords tag. Yandex and Baidu support this tag, but that may change in the future.