So, is this why the software world is full of bloated, slow, and buggy applications? Work on something just long enough to get it barely functional so the mana

So, is this why the software world is full of bloated, slow, and buggy applications? Work on something just long enough to get it barely functional so the manager can check some box; then quickly move on to the next thing?? Sure, there is always a point of diminishing returns; but leaving something only half-finished will cause more problems down the road. I have been brought in several times during my career to fix something that initially passed some acceptance criteria; but later became unusable once the load picked up (massive data, more concurrent users, etc.). The world doesn't need just more apps. It needs many of the current ones to work better.