The two types you describe can also be the same person at different times. At my last company, my workload started to thin out considerably. Initially, it was

The two types you describe can also be the same person at different times. At my last company, my workload started to thin out considerably. Initially, it was pretty great having so much free time, even as I made my extra bandwidth clear to my manager (while being careful not to overstate the case!). There was a period of novelty to coasting, but after a few months, it began to wear off. My ideal workload may not be being plugged in a full 40+ hours a week, but I learned I also need something far north of 4 hours a week. When a combination acquisition and spinoff took even more off my plate, it looked like I'd have months ahead of very nearly nothing at all. With a promise of no layoffs post-transaction, it looked like a coaster's dream. Instead, I left.