How do I use my cube files in Adobe Lightroom, I would love if I could import my .cube LUTS to Lightroom as Presets

It's not obvious, but there are ways to use them. The short version is, LUTs can be one of the components of a Camera Raw/Lightroom profile. One non-intuitive part is you can’t create these profiles inside Lightroom Classic itself, you have to do it in Camera Raw. But after include your LUT as part of the profile you create in Camera Raw, that profile becomes available in Camera Raw, Lightroom Classic, and Lightroom. When you want to apply the LUT to one or more images, just apply the profile that includes that LUT.

This has been possible for some time, but here is how it’s done in more recent versions. This is an 2024 article and video about it…

https://scottdavenportphoto.com/blog/how-to-convert-a-lut-to-a-lightroom-camera-profile

…and here is an article and video about it from just a few months ago:

https://photoshopcafe.com/how-to-use-color-luts-inside-lightroom-and-camera-raw/