Please check if your customizer allows you add link or button to product template. This way you just need to add a link to your home page that's it.
If not, you will probably need to add a button and style it accordingly with your home page link.
I can also implement a functionality where you can add a button which takes user to not the home page but to the previous page. So if a user comes from home page to a product the button takes user back to home, if user comes from collection or any page it will take user back to that specific page.
Best
Shadab
