I beg to differ. I find google keep / apple notes to be much more useful in mobile precisely because they are free from. I can enter lists , notes, phone numbers , links, all in the same document and usually get far more info on the screen.

Conversely every fixed ux tool I've used for this fails miserably because too little data since it's wasted by ux and small non freeform fields in widget that have limited space.

Further, I can easily cut/copy/paste large sections across documents where as in most fixed ux apps I'd at best only be able to move one item at a time and at worst have to manually copy each field from each widget to each field in another widget