It is absolutely possible and I have done it 10 minutes ago, but it is not possible to do it with oculus link software.
Let's start at the beginning: You will need a USB-C to Ethernet adapter. A docking station will also work, BUT NOT ALL WILL WORK!! I have 1 adapter and one full docking station with the Realtek 8153 chip. This is the only one that I KNOW will work. I read somewhere else that somebody else had success with the same chip.
I also have a sleek new dock from Ugreen with an ASIX AX88179 chip. This DOES NOT work.
On top of that: This worked on Quest 2 a couple of years back and the functionality was then REMOVED! My guess is, that it will now work again.
So..if you got your adapter, just plug it in and plug in the ethernet cable. You can now swith off wireless, but it is possible that some apps will need it switched on (even though it might not be connected!).
This setup can be used with virtual desktop. It works quite well.
One more thing: If you have a dock or an adapter with "power delivery", you can add a charger and charge your Quest at the same time. I tried that as well.
All of this comes with NO guarantees from my side. This functionality could be removed by meta at any time. The thing is: It is quite cheap to test even though it is quite hard to find out which chip those adapters use.
Have fun!