Yes, some of it survives on the archives, who knows for how long, always save copies of them.
I wonder if it is a generation gap, as many apparently learn coding via videos, however that it is not enough to go deep.
By the way, Microsoft suffers from the same diseas, they reduced their team size, ans unless one is coding since the 16 bit days, there are many things no one will find.
Some of it is gone forever, as they kept replacing their documentation, blogs and video platforms.
Other is still there, but you have to have actually used that in practice, to find out the Win32, or .NET Framework documentation that nowadays only gives the most recent version.
Or even Microsoft Systems Journal articles, as another example.
Google on Android is also a mixed bag, depending on what one is looking for.
