Normally silent as well in our MY24, but when there is heavy side winds, the wind noise from the turbulence is definitely present.
We've tried to measure the noise level using the Decibel X app on my iPhone while driving. Seems like the Decibel X app is picking up the noise cancellation from the speakers as well, at least it measures too high numbers (66-70dB) compared with reviewers who have praised the silent experience in the L460. The noise app on my Apple Watch shows 50-55dB - maybe that is more consistent with what our ears pick up?