I have encountered an issue where when I decide that I want to deselect the “show dynamic checkout buttons” (which takes away the “buy now” option and leaves the “add to cart option”, which is what I want) on my “buy button” for the product page, a large gap appears for only the mobile version. How can I fix this?
Others do not know what you know, always provide context so others can inspect and reproduce issues a screenshot is not a suitable replacement for diagnosing a website:
Store url, storefront password if any, theme name, are any apps involved, etc
https://community.shopify.com/c/shopify-design/help-us-help-you/td-p/668159
Good luck.