Could you please check the video quality and performance of using an external recorder such as Odyssey 7Q+ or Atomos Shogun.
It would be really nice to know if recording ProRes through the external recorder can help with the overheating time limit, the huge file size of recording in camera etc...
Finally, it would also be good to know if the 4K oversampling mode makes any difference to the clean HDMI for the external recording. And in general if there are any differences in quality between recording externally vs in-camera.
Looking forward to your review!