Making an effect into a transparent video alone?

[skinneyfat]

I'm a streamer and i'm trying to make a 10 second transparent snowfall video. I just want the snow and nothing else. Obviously I can't just place the effect without some kind of placeholder. The problem is everything I tried is failing. What I decided to do at first was make a bright green background and chroma key it out in OBS. The problem with this is that when i apply the chroma the entire video goes transparent, including the snow. Then I tried a different color to see if that helped with no luck. Then I tried to make the video into an AVI but I can't get the background to go away. Then I realized that since there is only 1 layer it would take it all away.

So the question becomes, is there a way for me to make this transparency happen or is it a lost cause?

[skinneyfat]

Thank you for your help. I went a different way with it. The way I made this project would not go transparent as I had it no matter what I did. I apologize for wasting your time. I am very intimidated by the Adobe manuals. They are very extensive and there is a lot to know. I'll be sure to look their first before I post again. Thanks again.