That's because the bulk of GeForce cards were being sold to miners, not gamers, and Jensen's had his accountants hiding that fact. He's already having to answer to regulatory agencies for that one. With cryptomining becoming unprofitable in 95% of cases after the gigantic slump in value coupled with rising energy prices, it's no wonder that sales have slowed down. You'll find a similar, perhaps not as acute drop in AMD GPU sales.
There's the one thing to consider: the economy is going sour, and this is a worldwide phenomenon. Not to go into politics, but, yeah. I just hope that the RDNA 3 cards arrive at a reasonable MSRP, because I can't put down $1500 on a GPU again. I managed to get the 3090 through sheer luck and because someone bought my Radeon VII for a lot of dough.