What If...? works well for learners who already understand English comfortably and want more challenging listening practice. The vocabulary is not overly technical, though it includes enough variety to make the practice meaningful. There is enough plot detail to keep learners engaged without making the whole experience confusing. With the dialogue moving at a natural rhythm, viewers should catch most of it, although a few moments may still be challenging. The community has given What If...? an English difficulty rating of 6.8/10, so a B2/C1 level is recommended to learn from it effectively and enjoy the content.
