Podman does support docker API so you can use something like the OpenTelemetry Collector to fetch metrics using the docker API and forward them to prometheus.
Not sure why you seem to receive downvotes. Seems like a pretty nice layout and comment. Anyone interested in explaining why you're receiving downvotes?
I've seen anything that mentions the word "telemetry" automatically receive down votes on HN. People confuse it with companies collecting user-identifiable data from clients like apps/browsers.
Collector: https://github.com/open-telemetry/opentelemetry-collector-co...
Docker receiver: https://github.com/open-telemetry/opentelemetry-collector-co...
Prometheus exporters: https://github.com/open-telemetry/opentelemetry-collector-co... and https://github.com/open-telemetry/opentelemetry-collector-co...
OpenTelemetry will soon support native Podman API as well.