With multiple movies and shows under its belt, the Marvel Cinematic Universe's Infinity Saga has introduced a new style of narrative where each saga represents new concepts to be explored. The Infinity Saga offered a look at the building blocks of creation with the Infinity Stones and how they could be used for good or evil, while The Multiverse Saga has shown the dangers of infinite possibilities. As a result, a huge distinction between the two has been made clear, especially with the antagonists that have opposed the heroes of both sagas.
Source:https://www.cbr.com/multiverse-saga-introduction-scarier-than-infinity-saga/