About using Azure Monitor for containers with ARO

Question

Please tell us about Azure Monitor for containers with ARO.

(1) "At this time, support for Azure Red Hat OpenShift is a public preview feature," the documentation states.
When will this be GA? I don't think it can be used in the production environment in the public preview state.

(2) OCP collects logs with Fluentd on the EFK stack.
In the case of Azure monitor, is the alternative pod collecting logs and transferring them to Log Analytics?
The EFK stack collects all logs including the OS log of RHCOS, but please check if it has the same function.

(3) In the case of AKS and Arc, there is a description that there is something like a default monitor set in Azure Monitor for containers.
ARO does not have that setting item, do I have to manually define it one by one?

(4) Please tell me how to refer to OCP logs in Log Analytics.
I mainly want to refer to application logs, OCP audit logs, etc.
I presume that it plays a role like Kibana in the EFK stack.

(5) Is it possible to tune the log retention period of Log Analytics?