https://access.redhat.com/documentation/en-us/red_hat_codeready_workspaces/1.1/html/release_notes_and_known_issues/known-issues#workspaces_fail_to_start_with_certain_configurations_of_storageclass

This part of the documentation is not really explaining how to go over the workaround. Guided steps would be helpful:

• You need to duplicate the StorageClass (you can't change the volumeBindingMode on an already created StorageClass)
• On the newly created StorageClass, you need to change volumeBindingMode=Immediate
• Edit annotations of those two StorageClasses to make the newly created StorageClass default (https://kubernetes.io/docs/tasks/administer-cluster/change-default-storage-class/)

Link to K8S doc: https://kubernetes.io/docs/concepts/storage/storage-classes/