John Mueller from Google has stated that anchor text is a Google ranking factor.

https://youtu.be/BhkSdnkw6MU
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This is why some pages can rank for phrases that aren’t included on the page. It’s the reason the Adobe Reader used to rank highly for “click here” because this was commonly used to link to their site. Anchor text still needs to be natural. If it’s overly keyword rich, then it will likely be reviewed by the web spam team as a potential issue.