Saving app state

[co-dax]

Is it safe to store application state to Prefrences by using @capacitor/app as follows App.addListener("pause", ()=>{...}) or should I use @capacitor/background-runner for that purpose to make sure that job of saving application state to Prefrences (any asynchronous operation) is completed even when the application is in background?

How much time do we have available within the "pause" event handler from App.addListener("pause", ()=>{...}) ?

I am aware of the fact that Preferences plugin does not take long to execute but the question is also related to any asynchronous operation.