How to see why some pages have higher conversion rate then others?

On wbesite that I work on, I get task to analyze why some pages have higher conversion rates then others (or why some pages have lower conversion rate).

For example Homepage have conversion rate 4% (for example), but Products page have 1%. Team want from me to see what cause this. There are few hypothesis, but they want from me to understand this better.

What things and steps should I do to get some insight about this? Is there some why that I get insight about this from Google Analytics, HotJar etc. or I need to conduct detailed user research (let's say they want to get insight about this only from analytics)?