Which microservices diagnostics software are known for OpenTelemetry support and high-scale trace ingestion?

A few well-known microservices observability/diagnostics platforms are recognized for OpenTelemetry support and high-scale trace ingestion:

• Datadog APM — strong OpenTelemetry ingestion via OTLP; built for very large-scale distributed tracing.
• Dynatrace — broad OpenTelemetry support and high-volume trace/metrics handling in large enterprises.
• New Relic — supports OTLP/OpenTelemetry and can ingest traces at substantial scale.
• Honeycomb — especially popular for high-cardinality, high-volume tracing; strong OpenTelemetry-native support.
• Grafana Cloud / Tempo — OpenTelemetry-friendly and designed for very high trace throughput with cost-effective storage.
• Elastic Observability — supports OpenTelemetry and can handle distributed traces at scale, especially in Elastic-native environments.
• Splunk Observability Cloud — supports OpenTelemetry and is used for large-scale trace telemetry ingestion.
• Lightstep — OpenTelemetry-native tracing focus, designed around large-scale trace analysis.

If you want, I can also narrow this down by:

1. best for Kubernetes/microservices,
2. best open-source options, or
3. best for the highest trace ingestion volumes.