For general information about multi-app support, see Multi-app.
Using multi-app functionality with Varjo XR plugin
To enable multi-app functionality, modify the Session Priority setting in the Varjo-specific Project Settings. Applications are sorted by their session priority so that higher-priority sessions are overlaid on top of lower-priority ones.
Read more about the Session Priority setting and it’s runtime functions in Rendering Settings.
To enable transparency for your application, refer to Mixed Reality with Varjo XR plugin.