Several years ago I did a lot of work with Blender pre-version 2.80. As I'm reacquainting myself with Blender 2.93.5 there are some differences that I can't figure out. For example, when I open a legacy Blender file the top workspace tabs are different from a new empty file.
Why aren't the workspace tabs consistent between older and newer files?
For example, a new blank file defaults to Layout, but a legacy file defaults to Default; are they the same thing?
Or, a new blank file has a Shading option in the top menu bar, but there's none in the legacy file. Why is that?