After the events of Loki's Season 2 finale, there have been many conversations among fans about whether the God of Stories is the new Watcher of the Marvel Cinematic Universe's Multiverse. Uatu The Watcher, who was introduced to the MCU in the animated series What If…?. He is a fifth-dimensional being that observes the Multiverse and its inhabitants from the Nexus of All Realities. Similarly, Loki is now an omniscient being who sits at the Citadel at the End of Time, holding the branched timelines of the Multiverse in his hands. Fans have pointed out that both cosmic beings have similar roles and wonder if there is an actual distinction between them in their cosmic tasks. Even though there are many similarities, at the end of the day they are extremely different, both as multiversal observers and as influential characters for the MCU's future.
Source：https://www.cbr.com/mcu-loki-watcher-differences-explained/
