What is missing?
Thanos introducing stateless Ruler https://thanos.io/tip/components/rule.md/#stateless-ruler-via-remote-write with possibility to send data from ruler somewhere else. It would be nice to see it in https://prometheus-operator.dev/docs/operator/api/#thanosrulerspec

Why do we need it?
The only way to use stateless ruler now is to override containers, which is kinda tricky.

Environment

• Prometheus Operator version: https://github.com/prometheus-operator/prometheus-operator/releases/tag/v0.52.1
• Thanos version https://github.com/thanos-io/thanos/releases/tag/v0.24.0-rc.1 (prerelease)