At my last employer (very large, not FAANG) every project started with a deadline for when it had to be done, but few details on what was being asked for, follo

At my last employer (very large, not FAANG) every project started with a deadline for when it had to be done, but few details on what was being asked for, followed by detailed estimates being required that were then only used for budgeting and not how hard it was to meet the deadline. Then inevitably all the details changed daily until the deadline was missed and recast again. Rinse, repeat, until eventually the project was canceled. All of this because the company had too many execs who wanted in on expensive projects, a product team with no ability to say no, and thus the development teams worked long hours to no avail. Shipping small incremental versions was considered anathema. So one could work on a project for 18 months and ship nothing only to start another project that also didn't ship.