Casting Jellyfin through Tailscale connected device

[Jellix]

I use Tailscale w/o any hassels exactly according to your description without any additional configuration. As an Apple user in the Hotel I take my IOS device (where Tailscale is always connected with my Jellyfin server at home) and stream Jellyfin content by Tailscale-VPN to any Airplay-enabled device somewhere around. I dunno if this might be a problem if it's about Chromecast but Airplay does the job.