When I left my previous job I had documented, cleaned up and transitioned everything without anyone realizing I was doing so before I gave my two weeks notice.

When I left my previous job I had documented, cleaned up and transitioned everything without anyone realizing I was doing so before I gave my two weeks notice. "Not giving a notice period" and "not tying up loose ends etc" are totally orthogonal concepts - it is equally possible to work out your two weeks notice and still leave your colleagues in a pile of incomprehensible crap.