How to find products without categories

For video instructions, please watch here:

[https://www.loom.com/share/59db67bbd4744047be1564074cb6eaae?sid=f3c67498-3917-42df-8433-089c376f939d](https://www.loom.com/share/59db67bbd4744047be1564074cb6eaae?sid=f3c67498-3917-42df-8433-089c376f939d)