I believe this game would benefit a lot for having support in LIV. I am a partnered streamer on Mixer and I stream beat saber on some days a week and have great success because of the mixed reality support. A couple of times a week I get up to a few thousand viewers from Channel one and on scheduled featured hours. I STRONGLY suggest you look into this.
You can find the LIV client here: https://store.steampowered.com/app/755540/LIV/