Different releases of Google Chrome share some of the zap rules?

[tddschn]

I have google-chrome and google-chrome-canary installed on my Mac, and I noticed that their cask files share some of the zap rules:

The zap rules

1. google-chrome

2. google-chrome-canary

The rules have many common entries, and it makes me wonder that what would happen if I run brew uninstall --cask --zap google-chrome-canary, would some of Chrome's directories be removed too?

How do I (cleanly) uninstall the canary version of chrome while leaving the stable version unaffected?