NVidia doesn't make the chips, they just design them, so it is a flex. People are literally buying their cards faster than they can be produced. TSMC is building new fabs to make more nvidia chips faster.
On the one hand, this is a great situation to be in for Nvidia in terms of overall revenue.
On the other hand, this has allowed AMD to grab market share with the RX 9000 series launch, at least in the short term. So the narrow point that Geforce is sold out is decidedly not a flex.
The idea it’s hard to buy a standard Nvidia GPU in the consumer lineup is absurd.