Depends on the platform and what you're looking for. Some operating systems and languages/ecosystems are worse than others. Windows stuff is largely incredibly bad (not saying Windows is bad, for this reason anyway, just that search results for anything MS-related tend to be awful). The nerdier the OS and less "corporate" the language, the better the results get.
The nerdier the OS and less "corporate" the language, the better the results get.
But don't get too obscure. Otherwise, you'll discover that Google has dropped the information you require from its index because it's not new or trendy enough.
If we can get Taylor Swift interested in the old internet, then Google will suddenly snap back into usefulness.