purge_purger_http does not purge public file urls in a varnish+nginx caching system

The patch file added.

This probem also related to https://www.drupal.org/project/purge_file/issues/3443498 🐛 File_replace does not purge file public urls in a varnish+nginx caching system Needs review .

I don't really get what this patch is trying to do. purge-cache-tags is supposed to contain cache tags, not file urls. This seems very specific to your use case and doesn't belong in the Generic HTTP Purger module. You could try implementing your own purger or using a different purger module.