Generally speaking, netcode aware scene management complexity can vary depending upon your project's needs and goals. Netcode for GameObjects (Netcode) provides you with two potential paths:
The Netcode for GameObjects scene management solution is enabled by default and provides you with a fully functional netcode scene management solution.
We highly recommend advanced developers new to Netcode for GameObjects become familiar with the integrated scene management solution before creating their own netcode scene management solution.
If your project has needs that go beyond the scope of the Netcode integrated scene management solution, you can disable scene management in the editor through
Writing your own scene management can be time consuming and complex. We highly recommend that only advanced users already familiar with Netcode for GameObjects take this path.