i think there are apps on mobile to help you stitch multiple images to create a panorama but not as personalized and as powerful as what you can do when you work on 360 templates in Adobe Photoshop
how can one add links to this type of 360 gallery in order to for example open one of the photos to another window, or navigate towards another "room" of the gallery?
Sorry about that but in some cases i prefer to focus on the idea of the tutorial it self instead of showing the whole design process and that's because we have other detailed tutorials that for example explaining just the design or any other specific task.