Do you guys know what I'm referring to? Or am I not explaining well?
Yes, and I have a relative who is a "challah expert" and always kneads by hand, and her challah is very much that "stringy" texture, as opposed to the "holey" one.
(There is a Challah Cookbook out there which she is a big fan of, it has a bunch of recipes and they also include direction for how to know if your dough is kneaded enough, if it needs more of a specific ingredient...)