You can generate a Schematic window for any level of the logical or physical hierarchy. You can select a logic element in an open window, such as a primitive or net in the Netlist window, and use the Schematic command in the popup menu to create a Schematic window for the selected object. An elaborated design always opens with a Schematic window of the top-level of the design, as shown in the following figure. In the Schematic window, you can view design interconnect, hierarchy structure, or trace signal paths for the elaborated design, synthesized design, or implemented design.
For more information on analyzing RTL netlists, see this link in the Vivado Design Suite User Guide: System-Level Design Entry (UG895). For more information on synthesized netlist analysis, see the Vivado Design Suite User Guide: Design Analysis and Closure Techniques (UG906).