What you are discussing is of course being studied but the problem is that it is a lot more computationally expensive. We do have simulations of simple (read very small) proteins folding and unfolding but for larger ones the computational time to watch them fold can be gigantic, if not impossible due to the fact that proteins often fold as they are being made. Which means including a much larger process into a folding one which just further stresses computational resources.
This computational problem is so enormous that a company at the cutting edge of research D.E. Shaw built a specialized computer solely for simulating proteins. Also most of the software used for this until recently had abandoned multi-GPU paralellism because it didn't scale well. The pandemic caused the need to simulate the virus on the entirety of Summit and introduced some work back into that route but it is still specialized (and wouldn't help for systems below a certain size anyways).
Also my previous points have been for atomic models (e.g. we treat everything more like newtonian particles and ignore quantum effects) some things definitely need more resolution and at that level you are lucky to see protein fluctuations let alone folding.