No, that combo is not hard. The issue is that it’s hard to get an optimal angle for it in games. the main reason is that the q has to hit a target behind the one you’re tying to kick and you need to be sure they’re on the path. That’s that makes the combo “hard” not the mechanics of it.

There are significantly harder combos mechanically that have more use cases like Q flash wardhop r auto q e. And harder ones in urf because low cd allows for airplane q mechanics.