Restream is fine, but the wizard won't test to it. Suggest using the same bitrate the wizard comes up with for Twitch, and use that to stream to Restream.io.
"GeForce Now" isn't a GPU, that's just the generic name for the software Nvidia ships with its cards to update drivers and provide for other features. The actual name of your card would appear in the OBS log.
With that Intel GPU you should be able to use the Intel QuickSync encoder to take load off your CPU, if you need to. Can't tell if you need to do that or not without a logfile.