I was wondering since during one of the last episodes of What If, Uatu showed Captain Carter the Multiverse Tree from Loki so it shows that the Watcher can see everything in the new Multiverse but it's been established that the Preeminence and Watchers can't see or even have their powers in Earth-91233 so it begs the question, "Does Earth-91233 exist by itself and would not need Loki to keep it alive since Strange is the universe?