Explain the problem as you see it
The Today button and keyboard shortcuts take you to the default workspace. However, when you switch between workspaces the button and shortcut take you to the default workspace, leaving the workspace you may be working on.
Why is this a problem for you?
I basically cannot hide the sidebar because I need it to go to the daily notes page.
Suggest a solution
The button and shortcut should default to the workspace you're working with at the moment. If I'm writing on my personal workspace, I want the button to take me to the daily notes page of my personal workspace. If I'm writing on my work workspace, then I want to be taken to the daily notes page of my work workspace.