When is it necessary to skip tag to digest resolving?

[NohaIhab]

Describe the change you'd like to see In the docs, there are mentions of tag resolution and why it is done in KNative, but there's no mention of when it is needed to skip tag resolution. I see many issues in the repo where the solution suggested is to to modify the Serving config-deployment configmap to skip tag resolution (examples are https://github.com/knative/serving/issues/13914, https://github.com/knative/serving/issues/6114, https://github.com/knative/serving/issues/9090). The missing information here is what are the use cases when skipping tag resolution is required? or it can be how does tag resolution work so one can understand when they need to skip it?