1. A computer-implemented method comprising: receiving selection of an application for parallel presentation in an immersive environment on one or more displays associated with a computing device; responsive to the selection, determining an amount of space of a non-primary region of the immersive environment to allocate for display of the selected application; and causing content of the selected application to be displayed in the space of the non-primary region allocated for display of the selected application and in parallel with display of content of a different application presented in a primary region of the immersive environment.