Can I export unclipped 32 bit image from a RAW file with Lightroom somehow?

.Exr preferably or maybe tiff  like  RAWtherapy  , or .hdr  or whatever file formatt with unclipped  true value range I could use in 3d/2d  or to kill shadows in photogrammetry based textures.

Lightroom is a cool programm but it collects dust on my PC. I have to use open source programms which all are slow as hell