Why no "advanced filter match filename"?

Both regular HDR and Dolby Vision are being displayed as HDR in Plex, but my files with Dolby Vision has DoVi in the file name. But there is no way for me to filter out these movies.

How come there’s no “filename” to match in the Advanced filter?

/Söder

It appears not to be a super common use case for most users… though there’s a feature suggestion to allow to filter a library by the Filemaker or parts of its path.