Testing from reviewers like Final Cut TV showed mixed results regarding the "faster export" claims:
For users on Intel-based Macs, this update specifically addresses and increases stability when disconnecting a Sidecar display. Key Bug Fixes final cut pro 1065 exclusive
We ran a stress test using a 45-minute multi-cam timeline with 8 streams of ProRes 422 HQ. Here is the raw data comparing the mode versus the standard version on similar hardware. Testing from reviewers like Final Cut TV showed