IMO, demand is much lower than @ this time last year, but that obtaining one's desired 13 Pro OR Pro Max is 3x-5x more challenging !
BTW, I check Apple's Availability Status almost every single day for select new models, including the 2021 iPad mini, which is their highest-in-demand new product !
I consider almost-Daily Availability Snapshots to be the best way to circumvent the BS put out by the so-called Pro Stock Analysts who cover AAPL for a living, regarding iPhone Unit Sales.
Also, 5G is NOT an Apple story, it's a Qualcomm & cellular service provider Story !
Apple simply benefited by supplying a consumer product into a market in which, at least here in the States, the cellular service providers beat each other up trying to get new, & keep existing, customers.
5G was the story prior to the launch of the iPhone 13 family, at least from a Marketing perspective.
The 13 iPhones have better 5G components, but the cellular service providers used-up most of their Ammo prior their launch in Sept.
The 12 iPhones sold well right up to the launch of the 13 iPhones.
I would NOT be surprised if Apple soon announces a Guidance Warning, simply because of bigger than expected supply constraints !
IMO, Apple may have to back-track on their solid Y2Y revenue growth statement !
How many 13 Pro & 13 Pro Max iPhones does Apple think they'll sell the last half of Dec ?
Anybody expecting a surge during that period ?
I think enthusiasm has mostly died down for the new iPhones.
The 14 iPhones could sell exceptionally well, however, based-upon the Renders I've seen.