Merge main into live

[dotnet-policy-service]

Please don't squash-merge this PR.

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Internal previews

📄 File	🔗 Preview link
docs/core/whats-new/dotnet-9/libraries.md	docs/core/whats-new/dotnet-9/libraries
docs/csharp/whats-new/csharp-13.md	docs/csharp/whats-new/csharp-13
docs/standard/frameworks.md	docs/standard/frameworks
docs/standard/serialization/system-text-json/extract-schema.md	docs/standard/serialization/system-text-json/extract-schema
docs/standard/serialization/system-text-json/handle-overflow.md	docs/standard/serialization/system-text-json/handle-overflow
docs/standard/serialization/system-text-json/how-to.md	docs/standard/serialization/system-text-json/how-to
docs/standard/serialization/system-text-json/migrate-from-newtonsoft.md	docs/standard/serialization/system-text-json/migrate-from-newtonsoft
docs/standard/serialization/system-text-json/use-dom.md	docs/standard/serialization/system-text-json/use-dom
docs/standard/serialization/system-text-json/use-utf8jsonreader.md	docs/standard/serialization/system-text-json/use-utf8jsonreader
docs/standard/serialization/system-text-json/visual-basic-support.md	docs/standard/serialization/system-text-json/visual-basic-support

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