While I would agree a wired connection is always going to be more stable than WiFi, there can be absolutely no difference in sound quality between a good WiFi connection and wired. Between the inherent reliability of TCP/IP and the buffering built into any streaming device the end result is 0 difference. It’s all 0’s and 1’s with no room for confusion or errors. This goes the same for the argument of upgrading your Ethernet cable, it’s 100’s bull and happy to argue anyone knucklehead on the point.