who really does "Agile" or "waterfall" or anything ? I'm in this job for 30 years. I've never seen any formal methods my whole career. it's like here's th

who really does "Agile" or "waterfall" or anything ? I'm in this job for 30 years. I've never seen any formal methods my whole career. it's like here's the thing we need or what the customer needs, gather some vague requirements, write some prototypes, do internal demos, now more requirements are there, more clarity, iterate on the prototypes, etc., repeat. use issue trackers, use "stories", use kanban boards sure, but are we adhering to some rigid notion of "agile"? no way. I can't imagine the "waterfall" method actually working either.