When you look at cloud infra companies like that, their competitive advantage is in quickly being able to ingest data and make it accessible, so an off-the-shelf solution likely doesn't exist for their particular use-case. Also, since that operation is your competitive advantage, you should look to in-source it rather than reach for a COTS solution.
It sounds like a ton of these cloud infra companies have this product strategy (datadog, snowflake, elastic, hashicorp, etc)