I now use a Thunderbolt 3 docking station; that delivers power and 10GBaseT over the one cable, together with video out to external monitor, and has the gubbins for more USB3 and SD cards etc on the dock.
I'm pretty much in the Windows/Linux hardware world, but my corporate laptop just pre-dates USB-C and has a propriatory dock with RJ45 gigabit ethernet, and my home PC desktop is gigabit. I'm testing an M1 MacMini but this also has RJ45 gigabit.

No need for my iPad to be on ethernet as WiFi 6 is faster than my WAN.
My parents have an ancient MacBook Air which has USB 3 and the original Thunderbolt port, and using the original Air's USB-A to Ethernet adaptor was USB 2.0, and so using an old Thunderbolt 1 to Ethernet solved the problem.
This "new fangled" USB-C world means people don't always see the difference between a USB device and a Thunderbolt device as the port is the same.... catch-22 !
21 years of broadband connectivity since 1999 trial - Live BQM