The question is self explanatory. There is no ‘Sync’ feature for vaults in the new version. What happened?
1Password Version: 8.9.0Extension Version: Not ProvidedOS Version: iOS 15.6 & macOS 10.15.7
Browser:_ Not Provided
1Password 8 doesn't support standalone vaults. Your 1Password account will be kept up to date, so there's no need to manually configure sync options.