Midcentury-modernists understood the difference between Model# (identity and positioning) and SKU/PN# (inventory and disambiguation). In certain light, this is interface design.
Latest gaming monitors and their Model#s are shown below. The SKU# became the Model# due to number of reasons but most likely SEO at the expense of everything else. It's interesting to see the friction this causes -- browse gaming forums and the laborious enunciation of full model#s in gaming monitor reviews. Sony falls in this camp as well (WH-1000XM6 headphones).
The other end of the spectrum is also equally dysfunctional. Macbook 14" Pro means absolutely nothing except for the general physical size and tier. Which one? Late-2021 or Mid-2023 or Early-2025? Apple does have a SKU#, e.g. MLW394LR/3 but it's buried deep. It'd take quite an effort to find one on your device. The broad category distinction of the Model# is also generic: <None>, Pro, Max, Ultra, etc. "Is it pro or non-pro!??", the process of disambiguation so janky.
In stark contrast we have IBM Model 5250. The literal word "Model" is an explicit signifier what is about to follow. Medium granularity, sufficient disambiguation to distinguish from say previous generation 5150. Additional prefixes and postfixes can be added such as IBM Model K-5250X. IBM also had a large hierarchy of SKU#/PN# : Machine type (2065-I), Feature Code (FC7920), PN# (1520510), Software Code (5734-XC6), etc. These would not be hidden from the customer, but prominently displayed outside of marketing contexts for engineers to disambiguate and keep inventory.
I think the modern AMD EPYC server chip naming is excellent: 9554 vs 9555, last digit is the generation which has pros/cons for sorting but they must have a reason to put the generation number at the end; perhaps to inventory all 64-core server CPUs, they'd would be grouped together by corecount. There is also an OEM and Retail PN# such as 100-5000328WOF.
Anyways, it is quite interesting to see the marketing people following each other in a particular subindustry (gaming monitors).