MyDataWork POV — Migrating BigQuery workloads to an open lakehouse on AWS sounds enticing, but the evidence supporting 'future-proofing' claims remains thin. Apache Iceberg promises flexibility, yet the transition's complexity isn't trivial. Each step—assess, design, convert—requires significant expertise, and the promised optimization could become a mirage without meticulous execution. Until we see more concrete success stories, the risk of operational disruption looms larger than the theoretical benefits of an open lakehouse.