It many cases it is still fully possible to install the fiber internet under these conditions.
Even if your residence doesn't have an internet port, many buildings already have internal wiring prepared for fiber internet. In such cases, installation can be as simple as adding a port to your room, with no need for screws or drilling holes.
If there is no existing fiber equipment, installation may need to be carried out from the external telephone line. In such instances, we always contact the building management for approval before making any modifications. If management does not approve, we avoid using screws or drilling holes. In many cases, installation is possible with no physical modifications.