Very big deal. Seldom enough better to sweat about.
It's not always true, of course, but on average I continue to get my best fidelity via Qobuz. Sure, my Sony CD/SACD player sometimes outperforms it and so does my SOTA/Alphason/Hana rig. But all three are pleasing as hell for me. At this point in my musical listening existence it's simply a matter of what piece of music I want to listen to.
Streaming can exceed CD, file, or even vinyl at many cost levels. It is a question of components in your system.
My streaming has equaled Red Book and often exceeded where higher resolution is available for a couple years. I use a wall wart wifi repeater to feed my streamers. You don’t need to make investments as high as my stems to achieve this. But you need to make careful thoughtful purchases… just like in all aspects of high end audio.
I went from a Node 2i back to CD’s. I even tried sending the signal thru an external DAC, but it never approached the sound I get from CDs. Like the vinylphiles, there’s something tactile about reading the CD booklet and seeing what artists are playing on the track.
One thing I will say about streaming, it was great for screening discs before I made the decision to buy them. Still do that with Amazon Music. It’s saved me some money a couple times.