Until the datastream is spooled out of the last buffer into the DAC itself it’s just data. No different than any other data that moves over a network. All of the same network protocols are used and there’s nothing special about an audio stream compared to any other network traffic.
From:
So, it is a data stream over TCP/IP into the buffer of your dCS networked device.
TCP/IP stack is designed to be generic as possible, so applications can interact with various data link protocols such as 802.3 (Ethernet), 802.11 (Wi-Fi), PPP (point-to-point protocol) and so on without needing to know what sort of link they are using.
TCP/IP actually comprises several layers of protocols, e.g.
5. Application DNS, FTP, HTTP, IMAP, POP3, SMTP, SSH, Telnet, SSL, ...
4. Transport TCP, UDP, ...
3. Network IP (IPv4, IPv6), ICMP, ARP, ...
2. Data Link 802.3 (Ethernet), 802.11 (Wi-Fi), PPP, ...
1. Physical Ethernet (NIC), Wireless (NIC), Cat 5/RJ-45, ...
So, Wi-Fi or cabled ethernet both work in the same domain. As long as your Wi-Fi is up and running, there is no difference in the final audio.