I have added comments/metadata to all my pictures. I would like to see these comments/metadata when I see the pictures on my TV. It would be nice if it was possible to cast the pictures from Lightroom to chrome cast.
It is possible to add a text-layer with srt subtitles (text file) to videos. The same must be possible with pictures (IPTC, EXIF, XMP metadata). It could be nice to watch my pictures and could see where the picture were taken and the comment I have added to the picture.
You should make a formal feature request to Adobe. There is a link for feature requests on the front page of this forum.