You should have an interactive demo as a way to show folks your product is real before asking for their Google account. Right now it’s easy to assume this is plussed up and not really offering what folks expect.
That seems complex because every second of interactive video costs money to generate, to the tune of 10 credits per 4s of video or "player action" if I understand correctly.
While for certain historical scenarios interesting, for "real world" experience this to me seems like speedrunning "dystopy" - we already face young people getting more and more disconnected from reality (yeye im spending way to much time on my screen also :P) and i, at least around me, can see a clear trend from people making their own experience to people more and more shutting themself down from the "outside world" - just ingesting tons of "contents". The example video linked in another comment showing someone smell a flower, or a friendly overnighter - this should be things you really experience yourself not things you should watch secondhand. People should stop wondering why depression and loneliness are on the rise - Feels just like heading an absolutely bad way....
It seems to be a new take on text based adventure games. You tell what to do, then the game computes the results and shows them as short video clip. Then you make your next moves and so on.
You don't have to "give" your main email address, if that makes you uncomfortable for some reason; simply create a new one, after all it's completely free.
So it sounds like this isn’t interactive. Just a wrapper around generating Sora videos with memory? Cool to see it as a real product, but not what folks consider “interactive” generally.