Another way to preview LUTs on your footage.
With icon corresponding to the timeline active clip thumbnail.
Only work on DaVinci Resolve 17.x.
If you never installed a Workflow Itegration Plugin in Davinci,
create a folder named "Workflow Integration Plugin" in "%PROGRAMDATA%\Blackmagic Design\DaVinci Resolve\Support" (On Windows) or
"/Library/Application Support/Blackmagic Design/DaVinci Resolve" (on Mac OS). If you have already a Workflow Integration Plugin folder,
put the "ui_timeline_utility.py" file inside the latter.
You need to install Pillow from pip install pillow.
Then finally restart Davinci Resolve if it was already opened.
In Davinci Resolve go to Workspace > Workflow Integration click on ui_LUT_Explorer_utility it will open a window.
Does not support 1D LUTs.