Tira here to help.
I appreciate you taking the time to research into this on your own.
Are you looking to add a quick view button so that your customers can see a pop-up of your product’s details without needing to go to the product page?
If you are, I recommend looking at a third-party app such as Quickview by Secomapp. You can also find similar apps listed here: quick view apps. These apps are developed by third-party developers, for any questions and support, you can reach out directly to the third-party developer by clicking on the links under the “Support” section of the app’s page.
What kind of products are you selling?