Welcome to the Shopify community!
and Thanks for your Good question.
Please share your site URL,
So I will check and provide a solution here.
@KetanKumar I have even in another thread but you didn't respond yet...
https://www.amelgo.co.uk/ is the site and
https://community.shopify.com/c/Shopify-Design/Brooklyn-Theme-Adding-arrow-navigation-on-the-product... is my thread that explains my problem fully, thank you
If anyone is still looking for it, I have coded a custom solution for this. You can not only use arrows but also swipe.
Here is the tutorial of how to install it and here is the live preview of the Debut theme working with arrows.