Silly-Sausage Alpha channel downloaded files in passthrough played in Heresphere is the best right now and looks absolutely incredible at times in the right lighting to suite skin tone etc.
AI Alpha is definitely 10/10 gold standard "mask". But as I can read between the lines there are one big problem with that one compared to real world AI mask. It is wrong lighting. Filming Alpha channel videos you have to have "greenscreen" (have to build grey room). Obviously you can light the model only from front, which messes up the skin colour (too white, model sides look greenish, legs in doggy position are too dark) and you don't get the normal sunlight from the windows and light scattering from the surfaces etc.
I assume because of this you are using HereSphere to correct skin colour. It has better options. You can not use DeoVr because that sucks in colour correction. If you adjust the colour/tone slider even a bit using DeoVr the framerate drops from 90 fps to 40 and even lower. After this video is ruined and unwatchable. Am I correct?