My experience with GeForce Now is that despite having fiber internet and WiFi 6, games are still unplayably laggy. I also wasn't able to play Cities Skylines, because none of my Steam Workshop mods would install.
Wi-Fi is an arms race between you and your neighbours about who has the most powerful Wi-Fi transmitter, while Ethernet works wonderfully and collision free, in terms of network packets.
We all have at least three Wi-Fi devices, including the smartphone, using some frequency bandwidth.
Yes, people dislike cables, but if you ever play and transmit the game via OBS to Twitch, for example, Wi-Fi is simply not going to cut it any more.