Comment 1 for bug 2001708

We probably just need to update the docs / release notes to say that it may be supported in the future.
It's really just a matter of packaging the webp-pixbuf-loader package, which should be easy for normal distro packages (e.g. Arch Linux or Debian). For snap it seems like it might require some more work (https://github.com/MrCarroll/pinta-snap/pull/10), not sure about flatpak