Schema is a specific code that will help with ranking your website. When your website goes down in ranking it time to start using schema. Schema is the backbone to your website. Since the beginning of 2019 lots of changes have been made to Google Search Engine and one factor is schema. It will help Search Engines better understand what your website is all about.
Advanced schema is not something you get with a plugin for a website. Advanced schema is added manually. It will precisely tell Search Engines what the page is about. Not just your business, but also your product or service. There is no copy and paste script you can use for advanced schema. Schema is also used for Rich Snippets on mobile devices. This will help your website stand out between other websites.