Screw desktop! Save your videos wherever you like. Get Configuration Manager, hit F1 in game, and paste in a path to whatever folder you want (see description). The default value is 'Desktop' which makes it save just like it would normally without the mod.
Press your keybind (default: `) and ragdoll in front of your friends! Or just yourself, if you haven't any friends. But that's okay, we won't judge. The duration of your ragdollery is also configurable in case you just want to lay there for a while.