Adjust the intensity of the LUT (3D) filter
You can reduce the intensity of a LUT (or any other filter) using filters in this order
- Mask: Simple Shape with Width and Height = 100%
- Opacity (here is where you adjust intensity, including with keyframes)
- LUT (3D) (or other filters)
- Mask: Apply

Properties > Video > LUT
There is also a LUT field in the properties for a video clip (but not image, image sequence, glaxnimate, or generators). This is useful for colorspace or gamma conversion LUTs when Settings > Processing Mode is set to Linear 10-bit CPU because the LUT filter will be operating in linear color. The LUT property runs before the conversion to linear color.

