Opengraph preview image size


i looked for a way that shared files have a preview image in their opengraph tags, especially for videoclips. i found out that this is possible with enable_previews and enabledPreviewProviders in config.php. BUT that uses the small square pic for the og:image tag. to get more attention when i post nc shared links, i would like nextcloud to use the bigger preview image. is there any way how i could configure that?