Hello, @TFS,
Image file names play an important role in the search engine’s process of site indexing. It tells the algorithm that an image is relevant to the searchers.
Naming images for SEO will improve your search engine rankings and website traffic!
Correctly naming your image files for optimal SEO, is a great way to start.
Further, you can read these article:
1.https://delante.co/does-image-name-affect-seo/
2. https://kinsta.com/blog/optimize-images-for-web/
Regards 8Themes Team.