This shouldn't be surprising. Perhaps comparing it to Oracle might not be quite right, I leave that to people who know, but Google is pretty obviously not the startup/disrupter of 2000-2004 any more. It is now 20+ years old and huge, and that means it is going to be somewhat like any very large organization: internal politics/empire defending, standardised compensation and management, mission, vision and values, etc. Your experience likely varies greatly depending on where in the org you land and who with - some people will come out writing blog posts and some people will find their happy place and never leave.
The interesting part around Google is that they had a kind of mythical status amongst techies that's lasted quite a lot longer than the early days. But they're just another big company now.