Re: Wireless stuff is never 'low latency'
Agreed. I ran CS servers for over a decade.
However, DECENT Wifi, with proper signal strength, QoS, etc. can match cabled latency good enough to enjoy the game, no problem. It would be as good, but the QoS, channel-sharing, downgrading abusive wifi clients, etc. matter much more than "it's wifi".
When my gf used to watch videos online, my ping went through the roof, even wired. Proper QoS priority on the packets meant she could do what she liked unimpended, and I still got sub-20ms ping.
People used to accuse me of having an advantage "because it's running off his computer". At which point I'd point out that the server was in France and I'm British. Literally, playing on a gaming laptop, over Wifi, over bog-standard Virgin cable, to France was faster than almost everybody's "gaming" setup. I even got into an argument with some guy who had one of those "killer" network card things.
With a decent router, 4G or Wifi is more than adequate for most people, and you have to be properly professional to require sub-50ms latency, most people cope quite happily with sub-100ms.