The RAM/SSD price spikes are not shrinkflation, but the article gives examples of shrinkflation happening due to it:
* Google's upcoming folding phone is going to have less RAM than the current model.
* Motorola has both increased the price on their Razr flip phone and downsized the minimum storage
* Sony reduced storage on the PS5 Slim
...
All of those could also be classified as "they learned consumers didn't need that much."