I haven't seen the video yet, but I've been playing around with LF using my underwater footage. I do a lot of colour correction on my videos. LF can do some colour correction, but I find it's a little lacking for more heavy correction on underwater footage, especially compared to Davinci Resolve.
So I grabbed a few clips from both blue water and green water (around 45 ft) and brought them into Resolve (free version), performed the colour correction there. I saved the LUT in Resolve then imported it into LF. This gives a really good starting point that I can adjust further in LF to get really good results. You can also adjust the strength of the LUT in LF which is helpful.
I adjust the colour temperature on the A6300 to 9900k when using video lights or 7800 when using ambient light. I also boost the Magenta to 5 or 7 depending on depth