If I were buying one of these laptops, I would definitely go with the 16GB model. The price for its level of performance is unbeatable, and you likely won’t ever be opening 380 chrome tabs, needing to render a 3D scene, and watching multiple 4K videos all at the same time.
If you are coming from a MacBook that only has 4GB or 8GB of RAM, upgrading to 16GB of RAM will be a huge difference, especially if you are upgrading to the new M1 chipset.