If I rated Zoom when I started a few years ago, it would easily have been 5 stars. There has been a serious downturn that seems to stem from a lack of clear strategy and very poor communication from leadership. It seems that key initiatives changed almost daily and various teams often had completely different priorities.
Further, there were serious inconsistencies in performance across people and roles—some were giving 110% and some might have been, quite frankly, coasting, or at best, excluded from key initiatives.
Perhaps to remedy this (and to cut spending, among other things) leaders began an ongoing series of layoffs. However, low performers were not always the target and it was often completely unknown and unclear to the organization why certain critical people and teams were cut. As you can imagine, this has created a fear culture where otherwise good people have become even more siloed and competitive.