Change WordPress user roles and capabilities › Forums › Restrict or Permit access inside WordPress – how to › Remove Item From Top Admin Menu › Reply To: Remove Item From Top Admin Menu
Thank you for reply and sorry for delay.
I was able to remove the menu item using a different plugin.
To answer your question, it is Astra Pro plugin for the Astra theme that adds “Templates” menu.
link to plugin: https://wpastra.com/pro/
That plugin is not available at wordpress.org/plugins.