Having descriptive and relevant file names for images on your website can be helpful for SEO. This is because search engines, like Google, use the file name as a way to understand what the image is about.
When a search engine crawls your website, it tries to understand the context of the images on your site by looking at their file names. If the file name is descriptive and relevant to the image, it can help the search engine understand the content of the image and how it relates to the rest of the webpage. This can help your webpage rank higher for relevant keywords, which in turn can help drive more traffic to your site.
It is also a good practice to include alt-text for images, which is a textual alternative for the image. It is used for people who use screen readers, and if the image is not loading, it will be shown instead. And that text is also used by the Search engines to understand the context of the image.
In summary, it is good to use descriptive, relevant file names for images on your website, and including alt-text can help Search Engines understand the context of the image and how it relates to the rest of the webpage which can help your webpage rank higher for relevant keywords and drive more traffic to your site.