Adobe has redesigned the Premiere Pro workplace switcher again and it is better than their last version
It is certainly an improvement to their upgrade which was going to hide workspaces behind multiple clicks, while this allows for single click to your favorite workspaces.
This new version is not the default which just shows the active worksapce, but if you click and select show workspace.
You can now scroll through workspaces or edit workspaces to edit which ones show.
Certainly an improvement from hiding workspaces completely, I still am not sure about the new header bar, which seems to make import and export more important than the meat of editing itself, butt this is at least an improvement.