Another option if you don’t have a family is to use DLNA for streaming to the TV, most TV’s have native support for that and you can just set up your computer to work as a DLNA server.

I do use a media server but I could probably get away with just syncthing to sync my computer and phone, it would probably be easier even. Of course, if you have more than 2tband you want it all at your fingertips then a media server is probably the right call.