I have been reading a bit about Firebase Analytics now, and because it is mostly an event-based data model, I assume one can not do screen tracking directly?
I was wande
To add on to Steve's answer: note that since Firebase only provides "open" funnels, this technique only works for a flow where users are forced to go from one screen to the next.
If a screen can be accessed from outside this particular flow, your funnel visualization will be messed up - since the number of users from within that flow and outside of it will be added together, potentially creating a conversion rate of more than 100%.
(That makes open funnels pretty useless IMO, except for very specific use cases.)