Ironic right? Although Kang frequently goes toe to toe with the Avengers in the Marvel comics, he also enjoys antagonizing the Fantastic Four (remember, Kang is a time traveler).
In one timeline, Reed has the worst wedding ever thanks to Dr. Doom (who Kang is also related to by the way). Doom and Kang decided to invite themselves to Reed's wedding, and launch a full-scale attack, per the Marvel Database. Reed was able to defeat the villains, including Kang, thanks to a device from The Watcher.
Given Kang's fondness for messing with time, we can only begin to imagine what kind of havoc he'll wreak in Ant-Man and the Wasp: Quantumania. As Distractify previously reported, Jonathan will be playing Kang the Conqueror in the third Ant-Man film.
But wait! Didn't Kang, or He Who Remains, die in Loki? Well, based on Kang's comic book history, we think it's safe to say the Kang in the upcoming Ant-Man film will be a different variant of the Kang we met in Loki. Marvel does also have a Fantastic Four movie in development, and we wouldn't be surprised if Kang made an appearance there as well.
After all, the variant that Sylvie stabbed in the Loki Season 1 finale did say, "See you soon!"