I worked at Google from 2013 to 2020. There were definitely employees (maybe a majority) who assumed that Google would
always be
the dominant force in technology. Those of us who were a bit older always understood that
everything changes in Silicon Valley.
Those buildings represented that change to me. I can remember coming to concerts at the Shoreline in the 90s and looking at those Silicon Graphics buildings: they looked so cool, and they represented the cutting edge of technology (at the time). And yet...it all disappeared.
Same goes for the Sun campus which is where Meta/Facebook is now. Famously, the Facebook entrance sign is literally the same old Sun sign, just turned around! [0]
So I always cautioned co-workers: this too, shall pass. Even Google.
[0] https://www.businessinsider.com/why-suns-logo-is-on-the-back...