I’ve tested it with my USB3 ethernet hub (Unitek Y-3059).
It works out-of-the-box with Windows, doesn’t with Android.
I haven’t researched if you can activate it in Android somehow, but I remember about an article about a year ago which addressed this on Android phones using an USB-OtG adapter to connect the ethernet adapter. There was the conclusion that on some Android phones it did work and on some it didn’t. Probably because lacking the appropriate drivers. If so, it may be possible to install these manually to get it working on Android aswell ?
I won’t research this any further myself, because ethernet in Windows suffices for me as a backup for bad or no wifi signal.