The Shimano neutral support team has a list with the materials each team is using, so they can quickly get the correct bike from their car and hand it to a rider if needed. You can see an example of the list here [1]. For example, you can see that they know the pedals used by each team.
[1] https://images.vrt.be/width1280/2026/04/13/db02d167-1a93-4c5...