If you’re having trouble painting because your paintbrush isn’t made of squirrel hair, then you just need to learn to fucking paint.
I'm doing gesture drawings daily now on a Supernote. The ability to use the entire 'page', then hit next page and start a new one, lets me crank them out in a way pen and paper doesn't.
Pen and paper -absolutely- is better for trying to capture a likeness, and the actual "quality" of the job at the end is about the same (if it isn't it's probably better), but the sheer ease of use means I do the thing more, which means I'm practicing more, which means I am, indeed, becoming a better artist.
The tools have to be suitable to the task (and I don't think anyone is saying the various frontend frameworks are -unsuitable-), but after that ease of use still matters.