The abbreviation for experience, expertise, authority, and trustworthiness is E-E-A-T. Google uses this methodology to assess the caliber of information on webpages.
Although it affects rankings, E-E-A-T is not a ranking component. It's a notion that Google use to assess the value, accuracy, relevancy, trustworthiness, and honesty of material.
For both site-level and page-level SEO, E-E-A-T is essential. Startups should make improvements to it to comply with Google's policies.