You can shoot in RAW or RAW light, and both can be edited using the RAW panel in DaVinci Resolve with full controls, including ISO and temperature. For workflow, the R5 can shoot RAW and proxies simultaneously, making it very easy to edit with proxies in Resolve - you just link the RAW clips to the folder with the proxies made by the camera. The RAW clips are recorded on the CFExpress card, the proxies on the sd card. Yes, the proxies have the same name (different extension) as the RAW clips.
Two examples:
And, no, the camera did not overheat in the bright sun (75+ F).