For those that are geeks/tech-savvy/software-tweakers ... etc.. it is an interesting challenge and a sense of accomplishment or joy when finally, everything works as it should . this after hours of forum discussions, reading , hai-pulling etc .. I tend to see DLNA/UPNP in that light. You can do it ou of DIY or Open SOurce solutions but this has a cost, perhaps not a monetary visible, cost but it costs
something. OTOH, ROONs, installs and works with not much fuss and is a wonderful tool that merges smoothly and transparently your own library with those infinitely larger of Tidal or Qobuz while working silently in the background to organize your metadata, including album covers or your ripped CD, ROON can suggest and rather well music pieces, you may like or so often, have completely forgotten about and that were in your library .. Past 100 albums/CD, this does happen to anyone.
When it comes to suggesting music, IMO, SPOTIFY has no peer. It does also happen, that it is virtually transparent to 99.999999% of the world population, including audiophiles with SET amplifiers, idler-pulley turntable and single driver speakers
. SPOTIFY, also, seems to work decently, as an ersatz multi-room "thing".
Peace.