I bought Skybox in the impression that it supports this feature. Virtual Desktop supports it, DeoVR supports it and in the roadmap it also says "supported passthrough" in 1.1.4. But when I tried to use it I noticed that this is only UI passthrough. After I read up on it in this forum I am actually kind of perplexed.
There was somebody asking for passthrough in March 2023 and you gave them the 1.1.4 version as ETA. In October 2023 I see multiple posts from people who are just as confused about this promised passthrough feature as I am.
You told them that you would put it on the roadmap or that it already is on there which is not true as it is not under work-in-progress.
In April this year @Lucy1987 clarified that the feature that was developed was underwhelming and that it was delayed. It's end of July now and nothing new came up. Not even that it is actually in development (did you give up on it?)
So this highly requested feature is supposedly in development for close to a year now. If you don't add this soon or at least prioritize it and start communicating about it you will lose a lot of customers, especially with the better AR capabilites of the Quest3 and upcoming headsets. I myself definitely regret my purchase now and will have to move on to another player.
PS: I would recommend specifying what kind of passthrough is implemented at the moment because the way it is now it's giving the impression that it is already an implemented feature.