Nothing wrong with that approach, but be aware that the last app you log in that selects the same hub's mobile device on a particular hub becomes the primary presence and push notification driver.
I have seen several reports from some users getting confused why presence/notifications stopped working on the new app. There is also an active incident that if you switch back to the old app after you start using the new app, there is no way to reconnect the existing mobile device driver to the new app. See this post for more details: [INCIDENT] Notifications and presence stop working after migrating to the new mobile apps
