A plumbing question, copper pipes in reinforced concrete floor

A relative has recently purchased a ground floor apartment. There is a gas boiler and multiple radiators. Reportedly the build is composed of solid concrete reinforced slabs with wire mesh mixed into the floors.

A neighbour mentioned that there have been leaks from copper piping in several apartments in the development. Apparently it is quite difficult to drill into reinforced concrete to address the leaks if they occur because of the mesh. My relative is anxious to put down some new floors but is concerned about possible leaks in the future. The copper manifold just below the boiler shows copper pipes with a wrapping of tight white plastic as the pipes enter the floor. Some are also surrounded by insulating foam. However, when you look at the copper pipes as they appear to go into each radiator, there is no obvious protective wrapping around them. What are the chances of a leak in this scenario?. The new owner is concerned as there is an area of new screed around one of the radiators in the sitting room where it appears there may have been a repair previously. We are told that the concrete reacts with copper pipe unless it is not protected from the alkali concrete.

The apartment is at least 20 years old. Any knowledgeable plumbers around ? Should they change to electric radiators to avoid hassle ?

I would recommend using vinyl flooring.
If a leak occurs vinyl won't be damaged by water.
Wooden flooring will expand and buckle if subjected to water.
Quickstep flooring is made of vinyl planks which are clicked together. They are easily removed without damage. The vinyl is very similar in feel and texture to real wood.