To give fair credit to Notion -- they have provided the raw data that was in scope (assuming you're on an Enterprise SKU). Along with the initial notification. This is quiet rare for these breaches. Fireworks definitely did not in their response.

So we've all got all the data to make our own determination on the data being 'unattributable' or not.

This is a delicious complement to the reassurances we are always given when metadata is tracked/stored/aggregated/breached that it's fine because it's just the metadata.