while motion blur is globally disabled

[coarse sky]

nope, what you cna do is (depended on usecase tbh) but you can make a trail or something and make some magic in material with SceneColor node, some transluency some refraction and you should be good to go 😄

[olive heron]

do you have an example node graph per chance? I've looked up some examples of using scenecolor but im still none the wiser about how to get a motion blur style effect

the use case is a meteorite flying through the air (essentially a ribbon that deletes itself)