Sony XR-55A80K - Wifi strength better than Wired LAN - possible?

[Sugar Kaine Mostly]

I'm trying to find the specs of the LAN chip or controller for my 55A80K. First off, I think this model is ''limited'' to WiFi 5. Here are the specs: Wi-Fi Certified 802.11a/b/g/n/ac. By the way my router is a Wifi 6 AX1800 box by Huawei, and the TV is at line-of-sight about 5 meters away max. lol.

I did a signal test with the Sony via LAN input. I could only achieve speeds of 100Mbps via RJ45. However, when I turned the Sony to Wifi mode, I'd get speeds of 300Mbps. I always thought the general rule was that whatever you get via Wifi then you'd surely get via a LAN connection since it's all coming from the router. I'm aware of classic LAN tags, tech that would always say 10/100/1000. So I assume this Sony is using or limited to 100Mbps?

Second thing is this, I'll soon be getting a Wifi 7 router box. Simply because my wife and I have Wifi 7 on our phones plus various other devices throughout the house already on Wifi 6, so my question is, is this Sony model limited to 100Mbps via LAN or 300Mbps via Wifi?

I believe I read somewhere that with some Sony models I can plug a USB 3.0 1Gbps RJ45 adapter. This was my TV can get 300Mbps consistently via LAN? Anybody ever tried such adapters?

 

[USAFRet]

Apparently, the LAN port on that is only 10/100.
So, that is all you'll ever get when wired.

At Amazon:
"Q: What is the rated speed for the lan (Ethernet) port, 100 mb or 1 gb?"

"Hi R. French, Thank you for the inquiry! The A80K's ethernet port uses a 10BASE-T/100BASE-TX connector,10/100 Mbps, meaning it will run at 10Mbps or 100Mbps depending on each piece of hardware that is connected to the LAN port."

Amazon.com

 

[dwd999]

What is it that you think the TV is going to do with all of that speed? If you're downloading games or movies into the TV's internal storage then the higher speed will be great. But most TV's only stream content, even from files on disk, in the 60Mb/s to 80Mb/s range and only 8K sets require 100Mb/s. That's why TV set designers don't bother with higher speed ethernet connections unless they're including internal storage in the set or including an option to connect a storage device to the set with the TV passing through the data from the ethernet connector to the storage device.