For some reason, I don't know if this is your lived experience, but it's certainly mine: searching in Docs is so much harder than searching in Gmail.
Obviously, they're both equally good search engines.
But I think what's going on is there's something different about how people interact with these tools.
My other product suggestion is something you'll have to enjoy from this part of the interview.
Docs is so much harder than, say, searching Gmail.
It's certainly my lived experience.