Hi @Anh Kiệt Nguyễn ,
I'm afraid for the latest version of Microsoft Edge, enabling TLS 1.1 is not an option. The modification in Internet Options is used for IE and EdgeHTML. Here're 2 docs for you to refer to:
https://blogs.windows.com/msedgedev/2020/03/31/tls-1-0-tls-1-1-schedule-update-edge-ie11
https://learn.microsoft.com/en-us/microsoft-edge/web-platform/site-impacting-changes#differences-from-the-chromium-schedule-and-high-impact-changes
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Best Regards,
Shijie Li