Surely the difference is that if you find something via Google/search you can then read any copyright notice to determine whether the code is OK to use for your

Surely the difference is that if you find something via Google/search you can then read any copyright notice to determine whether the code is OK to use for your use case (no joke if you're a corporate developer). If you're using Copilot to "generate" (but sometimes regurgitate?) code then AFAIK Copilot doesn't show you the copyright notices or any indication of whether what it is giving you is a "fair use" derivative or a copyright violation exact copy regurgitation.