According to current capabilities, there isn't a feature that allows automatic rule creation for new feature gates based on certain tags. When a new feature gate is created, rules for that gate need to be added manually. However, there is a workaround to use the same rule across multiple feature gates.
This can be achieved by creating a segment with the desired criteria and then applying this segment to the rules of your feature gates.
Additionally, there is another method to simplify the process of creating new feature gates with a specific rule. You can create a template feature gate with your rule in it. Then, you can use the “clone” feature to create new identical gates with that rule.
This method allows you to replicate the rule across multiple feature gates without having to manually add it each time.