@psyop2
agree with your approach, try alternatives is the way to make step changes. And certainly if you are questioning your system. I tried a first rate (to me) tube based CD player (ARC Ref CD9 SE upgraded) and it was a significant uplift in resolution soundstage and the DAC was excellent In it’s own right, so when I tried feeding my streamer through coaxial it significantly uplifted that too.
You can’t predict synergy, of course you can gather others experience as you are doing here, then jump in and give it a try until you no longer need to. It seems you’re not there yet. Enjoy your journey.
John