Starting with the release of Strategy ONE (March 2024), dossiers are also known as dashboards.
Some users want to open Dossiers in Presentation Mode by default without the need to change the view option after opening it (VIEW > Enter Presentation Mode) or clicking Presentation Mode button.
In Presentation mode you can view dossiers without having to see all the navigation features, such as toolbars, menus, and panels, that are available in the default interface. This allows you to maximize the amount of data that you can view at one time, while still allowing you to interact with your data.
Presentation Mode button:
How to change view to Presentation Mode:

There is no option to open dossiers in Presentation Mode as default in Strategy Web, this ability is one of the main advantages of the Strategy Library. With Strategy Library interface users have access only to the consumption mode of Dossiers which is equivalent to Presentation Mode view in Strategy Web.
Strategy Library does not allow users to browse to other objects in your Project. I.e. in order to view content in the Strategy Library, RS Documents or Dashboards/Dossier must be shared first to the user Library or the user must get the Library link to the Dossier.
ADDITIONAL INFORMATION:
Other ways to see Dossier in Presentation Mode:
KB441933