I want to make something that has multiple buttons arranged at the bottom of the screen like the iOS tab bar, and the corresponding screen is displayed when the button is pressed.
In such a case, will it feel like creating a scene with just a tab bar?
I'm new to Unity, so I don't know how to develop scenes separately.

  • Answer # 1

    You can do whatever you want. It's your freedom.

    The load of the scene is (basically) delete all objects → load all objects, so the display contents and the number of objects are small. If frequent switching occurs, it is faster not to split the scene. It moves with less load.
    On the contrary, if there are many objects in the scene, it will eat up the memory accordingly, so if you do not do well, it may lead to a load.

    When you search for "unity profiler", you will see how to use the profiler in various ways.