At home, my WiFi vs Ethernet ping is just a few ms different. For data, my WiFi 6 devices (most of them now) are faster over WiFi.

But, at work, there's hundreds of ms difference between ethernet and WiFi. I assume it because most offices use mesh networks now, and none here are WiFi 6.

So, network setup and router quality definitely play a part. My AP was ~$200, used for streaming VR.