The default Varbase configuration for Vartheme and its sub-themes is to hide the "Local Tasks or Tabs" available in content pages in the front-end theme, assuming that the Moderation Sidebar is the alternative method to edit, view, translate, or manage content.
This is simply done by implementing a visibility rule to the "Tabs" block.
To change this behavior, simply remove or edit the visibility settings for "Tabs" block.
Navigate to Administration \ Structure \ Block layout
Under your desired front-end theme, look for the "Tabs" block (usually under Top Bar region in Vartheme) and click on "Configure"
Go to "Pages" under Visibility, and either remove the
/node/* entry or add your own rules.
Removing the entry will make the Tabs appear again.