I'm confused on the connection between Loki and MoM. Are other universes like Earth-838 part of the sacred timeline? If not, what about multiversal wars? The point of the TVA is to prevent multiversal wars. But they don't actually govern over different universes, only different timelines. They only stop alternate timelines of a single universe, 616, from happening. And eventually Loki stopped them from doing that. But MoM shows that people can travel between different universes which are outside the saced timeline, like 838. Couldn't these universes spawn Kangs? Why doesn't He Who Remains also govern over other universes? At first it seemed to be because they were seperate, but with Fox's X-Men being integrated into the MCU, as well as Multiverse of Madness's 838 universe, we have seen that multiverse travel is possible. The TVA is protecting timelines from wars between alternate versions of one universe, but what about seperate timelines in other universes traveling to the sacred timeline's universe?
Is that why in the post credit scene, Strange has to fix his own incursion? Because the TVA doesn't connect to other universes, only the weird magic book things and America do?