Computer Configuration > Administrative Templates > Microsoft Edge > Content settings
Both
HKLM\Software\Policies\Microsoft\Edge
The 'PartitionedBlobUrlUsage' (Manage Blob URL Partitioning During Fetching and Navigation) policy controls whether Blob URLs are partitioned during fetching and navigation. If this policy is set to Enabled or not set, Blob URLs are partitioned. If this policy is set to Disabled, Blob URLs won't be partitioned. This represents the Blob URL behavior before Microsoft Edge version 135. If storage partitioning is disabled for a given top-level origin either by 'ThirdPartyStoragePartitioningBlockedForOrigins' (Disable third-party storage partitioning for specific top-level origins) or 'DefaultThirdPartyStoragePartitioningSetting' (Default setting for third-party storage partitioning), then Blob URLs aren't partitioned. The policy is scheduled to be available through Microsoft Edge version 146. After this version, the policy will be removed, and Microsoft Edge will no longer support unpartitioned blob storage. For detailed information on third-party storage partitioning, see https://github.com/privacycg/storage-partitioning.