To use LUTs in DaVinci Resolve, simply turn on the LUTs panel in the "Color" tab of DVR.

To do that, go to "Workspace", click "Show Panel in Workspace", check the "LUTs"

After that, you'll find the MotionVFX folder on the right side. Refer to the screenshot below.
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Kindly note that our LUTs are designed for Rec.709 output