A logic issue was addressed with improved restrictions. This issue is fixed in macOS Monterey 12.0.1, iOS 14.8 and iPadOS 14.8, tvOS 15, Safari 15, watchOS 8. An attacker in a privileged network position may be able to bypass HSTS.
https://support.apple.com/kb/HT212953
https://support.apple.com/en-us/HT212869
https://support.apple.com/en-us/HT212819
https://support.apple.com/en-us/HT212816
https://support.apple.com/en-us/HT212815