In an environment like this the incentive is to become a bottleneck for a lot of projects (so you get at least some that get delivered) and then a) do nothing on most to outwait the inevitable cancellation b) do the minimum possible work on the remainder, but make it seem as complex as possible.
Even with low hours of work this becomes a very stressful environment as if you are trying to get something done, you have to be constantly convincing people you are depending on that the project is worthy of category b). While doing the exact thing to the people depending on you. Turnover makes this hard also as a small percentage of coworkers are very valuable to you (you can trust them to prioritize your project).
From my experience this stress stretches into your out of work time, making the WLB worse even with a reasonable amount of "in office" hours.