This. Shoes are meaningless, pose, stride, biomechanical process.
They can make a difference for athletes:
"The data showed significant differences in the oxygen uptake (a way to measure the energy cost of running) in the Vaporfly shoe resulting in a 2.8 percent improved running economy, or the amount of energy it takes a runner to go a certain distance, over the Adidas shoe on average"
https://lifesciences.byu.edu/can-your-shoes-really-make-you-...
But not every runner sees improvement in time. so-called non-responders exist at the elite level but I don't recall seeing any analysis as to why some runners run faster and others don't with these carbon-plate shoes.
[edit] a quick search found this article about supershoes and the range of response - see https://run.outsideonline.com/gear/super-shoe-hyper-responde...
Also the significant benefits that comes from improved post-run recovery with modern super shoes, allowing athletes to run significantly more weekly mileage.
If this were the case why don't we see more Olympians running in vibrams?
Not vibrams, but please have a closeer look at those olypians shoes. These are very lightweight and most important _flat_ shoes, encouraging a natural running pose.
The best I could find was the 2023 berlin marathon, but looking at the shoes the heel and midfoot are flat while the forefoot is definitely raised.
https://www.runningshoesguru.com/2023/09/the-shoes-of-the-wi...