Webp conversion and copyright metadata

Our lawyers require us to keep IPTC copyright information in images. According to “Cloudflare Image Resize” documentation metadata is only preserved for jpeg images:
https://developers.cloudflare.com/images/image-resizing/format-limitations/

Is that a default behavior that could be customized via the metadata option or is webp metadata unsupported? If so are there any plans to add support for it?

Any help appreciated!

Currently, WebP and PNG output formats always discard metadata.

URL format · Cloudflare Image Optimization docs