Sharing application to discord using virtual desktops in Windows 10

[Mr. Sandman]

I have a possibly pretty niche thing I want to do. I usually stream movies with friends over discord, I would have the movie fullscreen on my second monitor, and use Discord's screen share to share that application window in a live call with a friend or friends. I might be moving to a single monitor setup soon (mostly for simplicity and to cut down on clutter), so I wanted to figure out if I could do the same thing with virtual desktops, but Discord doesn't seem to be aware of any windows open on the second virtual desktop. I tried troubleshooting using OBS window capture and it has the same problem, so I'm assuming there's some sort of barrier between the two desktops that prevents them from being aware of the other's applications. I want to be fullscreen in the call on Discord, and I've had weird things where my mouse is visible on the livestream if it goes over where the video window is

Is there a way to overcome that barrier, or an alternative method to achieve this?
 

[SansVarnic]

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Streaming any content that is copyrighted without the proper permissions is a form of piracy.

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