Follow the steps:

Open the Command Palette ( Ctrl + Shift + P ) and type Keyboard Shortcuts.
Click on Toggle Activity Bar Visibility, and choose your shortcut using the
keyboard!
It's done!
I am in the Microsoft Visual Studio environment, most screenshots of this environment show an activity bar in the left sidebar. However, I cannot get this to appear in my display, I have sought to access this activity bar in view but cannot see any reasonable options.
Any thoughts?
visual studio Display, how to access activity bar?