So all the chapels that pray the rosary before Mass are doing something wrong? The rosary also muffles the sounds of the confessional. I think that's it's wrong to stop it.
I'm just reporting. Before Vat II it was never the norm.
Remember, many people travel long distances to Mass on Sunday, and before and after Mass is the only time they have to spend before the Blessed Sacrament. The rosary can be prayed as a family or privately elsewhere.
Also, some chapels are now adding a litany and other prayers following the whim of the leader
Quiet time before Mass should be used for preparation. Check your missal. There are many prayers of preparation for Mass.
As for confession, if you remain at least 3-4 feet from the confessional you shouldn't be hearing anything.
It seems much more reverent.