Hello @heirofmozart Welcome to the world of streaming! I think you will never look back. The convenience of music at your fingertips is amazing. and the world of new music to discover is awesome. You have chosen a great service in Qobuz. I think most of us here recommend that as number one.
A good streamer will sounder better than your Mac, and be able to play music from Qobuz, Tidal, a usb or network hard drive and other streaming services as well. Your Qobuz playlists will (should) seamlessly appear on your streamer once it is logged into Qobuz.
Right now, you are using (I assume) the Qobuz app or website to make your playlists and play your music. Up to date streamers will do the same, using Qobuz connect as you do now on your Mac, but should sound better as they are a dedicated computer not running other noisy tasks.
However, most streamers also come with their native software to play music. The advantage here can be collating music form different sources. For example, I have Qobuz and Tidal, and a hard drive with lots of high resolution music on it. So my streamer can combine music from all of these sources for playlists or random music.
As examples, Auralic's software is called Lightening. Aurender's software is called Conductor. Innuos' software is Sense. JCAT has JPLAY. Other companies including HIFi Rose and WiiM also have their proprietary software. All of these collate your music and have different levels of metadata (info about artist and albums).
Most folks get used to one brand's software and don't like to change. Most of these companies also have streamers that range from good to great, depending on price. You will hear many opinions on which is better, but brand loyalty runs high once you learn the software.
You may also choose to just use the Qobuz Connect software, just make sure any streamer you buy has this feature. And yes, you can play in your car from the Qobuz app.
Finally there is ROON. This is a software package only (not a streaming service) which in many peoples opinion does the best job at collating playlists across sources and does have the best and deepest dive into the metadata. It requires a separate subscription, and ROON Core (Server) must live on a computer on your network. I use ROON, have a lifetime subscription that is now not offered, and love it. But at my vacation home I use an Auralic streamer and use its Lightening software. When I add a song to my ROON playlist, I also add it to my Qobuz playlist so that I have it at the vaca house. Auralic (which I like) is now out of business, but the machines still work well. Updates in the future are likely not available. There are good deals on Auralic Aries Streamers right now, but....
I would say go for a quality streamer and it will sound better and free your Mac from your system. Most are available on a trial basis.
I am sure folks will follow with specific recommendations on the streamer and software they like best! Good luck!!
