TV manufacturers have rushed to improve their latest models with fast HDMI 2.1 ports capable of supporting 4K gaming at 120Hz in glorious HDR. Unfortunately, most of the same models still use outdated 100Mb Ethernet ports.
Most new TVs support 5GHz and 2.4GHz wireless networking, but Wi-Fi is notoriously temperamental. Even though 5GHz networks have a theoretical maximum speed of 1300Mb/sec, many confounding variables can affect real-world performance. Ethernet is far more reliable in this regard.
To which I’d like to add a Hell, yeah! At least in so far as avoiding Wi-Fi is concerned.