I can’t say with complete confidence, but since HDR support in linux is fairly new and DolbyVision is a proprietary standard, you’re probably out of luck when playing the files directly.
However, since you have an apple tv, you can set up a media server (be it jellyfin, plex, emby, DLNA or even a simple SMB fileserver) and stream to the apple tv via a media player app that supports DV. The easiest setup would probably be plex.