Day to day work as an engineer leaves a bit to be desired. So many engineers and cross-functional team members are new to Zoom from the last year or two. There is a a lack of institutional knowledge in a lot of areas that leads to a fair amount of inefficiency with the product development process. Little information to go on at times, little dev environment or biz requirement issues that are hard to find someone that has the answers, etc. It has been somewhat difficult to drive significant fulfillment from the day-to-day work personally, so far.
Working with coworkers on the opposite side of the globe is difficult as well. While we do have support for maintaining a work-life balance, it is difficult to balance maintaining boundaries but also coordinating to ensure project success.
That being said, I don't believe this is unique to Zoom, and do believe in the active work being done to improve matters.