Ask HN: What tools are you using for client RUM (Real User Monitoring)?

What tools are you using for client Real User Monitoring?

Ideally I would use OTEL but the client libraries are only stable for tracing.

I’ve started looking at Sentry, NewRelic and Dynatrace. Neither are a perfect solution as it means splitting up our backend metrics (GCP, with managed Prometheus) and front end without some syncing or moving them over to them.

What does everyone else use?