I guess I just feel like if I need to know something (something is offline etc) then I need a notification, I don’t want to have to be checking a dashboard. I use Uptime Kuma for this.
I see your point with Jellyfin, but I also have the clicks to find active streams as muscle memory and it’s not needed that often so I don’t think I’d go setting up a dashboard just for that.
I’m using ntfy for notifications. I have some other notifications go through it too so it’s not only used for that.