Hi, this is Kim and I have a newbie question.
I just looked around the statics of my app, however found out something interesting.
There was a difference between the number of 'new' users of 'session_start' event and the number of user of 'first_open' event.
Specifically, the former one was 17500, and latter one was 6000, so it was quite big difference in the case of our app.
So, I really wonder what 'session_start' means.
I already read the explanation of Firebase FAQ, however, I think it does not explain all cases of 'session_start'.
It can be guessed that 'session_start means not just the number of user residence time exceeding the fixed session time, but also some user actions on the app, even being not in-app action.
So, please let me know the measure standard of 'session_start' event.
Thanks.