Hi
I think it can be done with the current desktop version (6.7.3329.24 (Stable channel) (64-bit))
Open the Appearance in settings
Under the Menu group, select Tab as Menu Customization
Select Move Tab menu
Right click on[All Workspace Destination] (as Subfolder)
a0b38d5b-5fe1-4719-a3fe-64fe6c61efa1-image.png
Disable Show as Subfolder
fbdaea2f-5b42-44f7-83af-58835f6070ac-image.png
You can see the result
bfcaeec8-e5de-435d-b2b9-1706293b71b9-image.png
I hope it helped