Xytronix If you want to hide the Debug menu, you can do that by setting bellow flag with Terminal
RC - defaults write com.kagi.kagimacOS.RC DebugMenu -int 0
Beta - defaults write com.kagi.kagimacOS DebugMenu -int 0
This will be visible in Dev builds by default, as Dev builds are intended to have that, to be able to debug some issues.