“There is not a native app on Steam deck today,” said Andrew Fear, GFN boss, back in January. “Use a Chromium browser to make it work. I would say that both Nvidia and Valve, I think we’re both interested in making [GeForce Now on Steam Deck] better. But we don’t have any announcements on a native app coming to Steam.”
Sure, that’s fair.
However, if that’s the case then I would encourage you to at least edit your above comment to indicate what you’ve learned - as it stands right now it still implies the discussion is about local streaming/Gamestream.