Opening a shell is not an obstacle when you've already got several open. Also, not all of us are refactoring huge codebases or using verbose languages that require a lot of handholding. The hard part of development is typically not at the typing or syntax levels, and I have the stdlib of my favorite libs close to memorized already. The most helpful ides tend to be massive as well.

Tools can be useful however, such as the hot reload of flutter/dart. That's the kind of improvement I really appreciate.