So my memory doesn’t fools me, Flame don’t have DJI colour science (and some of other camera manufactures). So Resolve comes to the rescue.
I bought my Resolve dongle 10 years ago, before free version was announced, and I still think it was best 1300$ (things always cost a little bit more here in Ukraine, than in normal parts of a world) I ever spent. And for 300 it even better investment. Studio version should read h265 without any hiccups, and do tones of other cool stuff, so year, I highly recommend it.
Here is you frames I convert from Dgamut/Dlog to AlexaWideGamut/LogC and fix color temperature + exposure (couple of clicks). If you want or need to get this footage in Flame just convert to AlexaWideGamut/LogC, render to ProRES moves and use it as Alexa files. Should work reasonably well.
Or I can bake this conversion to LUT you can use in Flame (in theory, should be tested).
IDT (Input Device Transform) is a term used in ACES workflow for transforming your sources to ACES colourspace (it’s free of some LUT limitations, but serves the same purpose), just think of it like LUT 2.0 format.
Hope this helps.