How does the extension work with the built-in Magento search for finding blog content?
While the Blog content does not show up in search results by default, we do have an extension that makes finding blog posts with search possible, in addition to a number of other features. The extension is Advanced Search, which is also included in Amasty Elastic Search.
If both extensions are installed, the Blog section can be added to the search popup in settings of Advanced Search (Stores → Configuration → Amasty extensions → Advanced Search).
Example of the Blog post suggestion on storefront: