Hello,
Navigate to Products > Categories.
Add a new category (for example, “New Arrivals” or “Special Offers”).
Assign products to this category:
Edit each product you want to include > Under the Product categories section, select the new category and update the product.
Navigate to the page where you’ve added the Product widget and add the “Products Grid or Carousel” widget > Edit the widget settings and set the Product source and Choose the category you just created from the list.
After saving, only the products from that specific category will be displayed in the Product widget.
See Screenshot for better understanding: https://postimg.cc/v1pm9Dm9
Best Regards,