As the title says, after installing everything from https://github.com/system76/windows-drivers/tree/master/drivers/intel/rpl-hx, my ethernet adapter is still not identified. After looking up its hardware ID's, turns out it's Intel. After installing this: https://www.intel.com/content/www/us/en/download/18293/intel-network-adapter-driver-for-windows-10.html it worked! Hopefully it gets added to the windows drivers page for this model.