A recent commit in darktable's git repo removed the block on using Neo OpenCL, meaning: development snapshots of #darktable now support GPU acceleration for modern (within the past several years) Intel GPUs for a noticeably big performance boost, provided you have Intel Neo OpenCL suppport installed and compile darktable yourself.
Summary: Quicker photo editing in darktable for Intel laptops (without NVidia or AMD)!
This should land in a release by the end of the year in most Linux distros.
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