Camera app import into resolve - color transform

Importing footage into Davinci, I'm trying to get the color space transform setup correctly. I understand the color space setting, whether its P3-D65, Rec.709, or Rec.2020, but what do I set the gamma input and output?

[Peter Chamberlain]

The auto selection should take care of both settings.. is it not?

By auto selection do you mean selecting "Automatic color management" in project settings?

So for example, if I record in Rec.2020 I would select Color Managed > Automatic color management > Mode as HDR > output as Rec.709.

Or should I use ACEScct with input Rec.2020 and output as Rec.709. I know this really depends on workflow, but there is so many options its kind of overwhelming.

Iphone 13 pro btw, I think I forgot to mention that.

Here is where I get confused.

RCM, if I read it correctly, sets input color space to 2100/2100 HLG

Quicktime Movie Inspector reports 2020/2100HLG

This when camera app is set to 2020