Frictionless and minimalism are related but not necessarily the same. Often they are conflated which can lead to design debates that are difficult to resolve.
A design can be minimal but still have a great deal of friction. The Linux command line interface is a great example of minimal design with high friction. You can do everything through a single prompt, as long as you know what to type and when. The minimalism is wonderful, but the ability to get going comes with high friction. The Unix philosophy of small cooperating tools is wonderfully minimal (every tool does a small number of things and does them well), but the learning and skills required are high friction.