Label filtering after unwrapping

Grafana Alerting
1

I’m using Grafana alerting with Loki as the data source.
In my LogQL query, I apply topk() over a metric extracted using unwrap.
Now I want to filter the result of topk to exclude any series where the label status = "start".

Is there a way to filter out those series after topk() — either in a Grafana alert rule or using a recording rule?
If so, how can I implement that?

My goal is to monitor the final state of containers, and only alert on those that have ended with a DIE or OOM status. So I’m using this query to extract and filter only the relevant failure cases.

my logql + metric query is like below

topk(1, last_over_time(
    {container_name=~"docker-events-logger.*"}
    | json
    | Type = `container` 
    | status =~ `die|oom|start`
    | unwrap timeNano [123s]
) by (Actor_Attributes_name, Actor_Attributes_image, host_name, host_ip, status)
) by (Actor_Attributes_name, Actor_Attributes_image, host_name, host_ip)