Nintendo worked with nVidia on 3DS but nVidia couldn't get Tegra 2 done in time. They have a long standing relationship.What's fake?
See my post above, Nvidia have moved on, it's no longer the same company Nintendo were dealing with back in 2015/2016.
They don't give a fuck anymore about 1 billion over the course of 7-8 years, especially not when it's from a partner who aren't going to be showcasing their latest and greatest features.
IIRC nVidia stated that a big reason they valued the relationship with Nintendo was because after Gen 7 they didn't want to be shut out of the console market again.
Sure, Switch 2 will be a lower percentage of their business than before, but huge companies like that have their hands in multiple markets. They'd still want to be involved in Switch 2.