Execution-only culture: roles are highly segmented with limited scope, which is normal in big companies. Even at mid-senior levels, autonomy is traded for a top-down, execution-heavy approach driven by a detached strategy team (that are more mere project manager in some cases).
Leadership and accountability: there is a significant disconnect between top-management decisions and actual results. Leadership tends to deflect responsibility for strategic failures and manipulate reality to blame bottom lines.
Bureaucratic friction: expect to spend significant time navigating internal politics, micro-management and redundant alignment meetings rather than doing meaningful work.
There is little effort from the organization to address feedback or improve retention. I guess they focus more on employer branding (see all those amazing posts about culture, way of working, and so on) than solving internal issues.