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Google tries to defend its Web Environment Integrity
(techreport.com)
This is a most excellent place for technology news and articles.
Yes, but they're two separate issues. Many apps that don't care whether you have root or a third-party Android build use Google's libraries.
Patching apps is another workaround. It won't beat server-side checks, but I think those are still fairly rare. ReVanced makes it easy to do, though I'm not sure there are patches related to SafetyNet yet.