That’s what I’ve been curious about, but even still on a DSM 223 & 418 I’ve found them alright to an extent running Radarr/Sonarr/Transmission.
I did however run into problems trying to use them via Container Manager aka Docker on the DSM’s.
Jellyfin thou is definitely best run on something that can transcode media and the DSM’s are definitely not cut out for that, and if your Windows PC has an Intel processor will see you having less issues. Good luck you ;)