Your question is Regression Drivers of Conversion. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
You are looking at conversion through a signup funnel and want to separate signal from confounding. Several user attributes and product exposures move together, so raw correlations are not enough.
How would you use a simple regression to understand what drives conversion?