to remove the buy now button or buy with paypal on Shopify follow these steps:
Log in to your Shopify account and go to the online store.
click on “themes” in the left-hand menu.
find the theme that you’re currently using and click on Customize.
select the “product page” template from the dropdown.
click on “Buy buttons” on the left sidebar.
uncheck “Show dynamic checkout buttons”
Save the changes and preview your store.
Note that removing the “Buy Now” button may affect the user experience and conversion rate of your website, so it’s important to consider the potential impact before making this change.