https://appleinsider.com/articles/21/06/23/how-to-batch-rename-files-in-macos
If you have to collect a number of files in the same folder, but want to title them in a more orderly fashion, you need to learn how to master renaming files in macOS…
Keen photographers will be familiar with facing a series of files titled something like “DSC_2318.JPG” or similar, which won’t tell you what the images are of unless you see the contents of the file, or you had the foresight to give the containing folder a good name. This doesn’t help if you then have to share those files onward, as the recipient will have the same problem.
What you should do is either rename or edit the names of the files so that they’re more readable. Though you can do that for individual files, Apple actually includes a great dialog for batch-renaming multiple files at once…