Not sure if this is exactly what you meant but if I understand... What you COULD do is have a Scene on OBS where you intend to have your fullscreen game capture in, open the scene's filters and use a Spout Filter (which you'd have to download if you don't have it), and use that as a Warudo Screen.
![Two photos:
[Left Side] A blue can of Sweet Sue's Canned Whole Turkey, Fully Cooked "HOME-STYLE GOODNESS" with a picture of a full cooked turkey on it. Sitting on a kitchen table.
[Right Side] An entire cooked(?) turkey sliding out of a blue can upside down. It appears to NOT be cooked despite what the can says. not looking anything like the picture.](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:yz7f36dz7vlz3p6qz6e7lixe/bafkreifsfo56mejtues65awi7g7g5uzfitfsxj7yjran46rp55miq47ys4)
