We have data. Several Bradleys were hit during the Iraq wars by weapons similar to what near-peer adversaries use. Some shots penetrated, others did not. Overall, it held up about as well as can reasonably be expected. It's simply not physically possible to build an IFV that can stand up to modern guided weapons, and so the Army accepts that risk in order to accomplish their mission.
We have no experience with it fighting a peer or near-peer enemy, is that correct? That doesn't make it bad, but not good either. We have little data.