Taking a 4k stream as an example, a compressed 4k stream is not going to exceed about 50Mbps, so even a 100Mbps data rate will have a 2x safety factor - and since you're wired, you're going to get full use of that data rate unlike Wi-Fi. You're not streaming uncompressed video as that would require more than 2.5Gbps, and if you want to upgrade to 8k video, you'll need a new TV anyway...
I always wire in my TV and other fixed infrastructure because, since they aren't moving, there's no advantage to using a data layer protocol that, by definition, enables mobile access. In addition, latency and jitter is always better on wire versus wireless, and keeping these devices off the wireless frees up precious airtime that the rest of my devices that do move can use instead. It's a win-win-win all around.
That’s average throughput. Peak can be much higher, especially on high bitrate content and remuxes, and especially with newer HD audio formats. Modern smart TVs have a pitifully short buffer, so you can run into problems. I did on my Sony, and switching to wifi solved it.