Math is for modeling.
It’s always for modeling.
The Universe is not made of models.
The Universe “is”.
Mathematics can be used to make a toy Universe that looks the same.
But it will be a toy Universe because there will ALWAYS be some level it neglects.
You can address multiple levels simultaneously in a simulation program. But again, it’s making a simulation. A simulation is not the Universe. WE may not be able to tell the difference but that’s what con men are made of.