Hello,
The “You may be interested in” section is appearing when you have activated the “Cross-Sells” products (Cross-sells are products that you promote in the cart, based on the current product.) in the settings of the product, or rather in Dashboard -> Products -> Product data section -> Linked products. Therefore, in order to hide this section, just remove all products from the “Cross-sells” field.
https://monosnap.com/file/6siMCCqvqhr98Y65twAQKWN2X9PeLq
If there’s anything else we can do, please get in touch.
Kind Regards