Wow! Ok, this episode re-introduced the 'Oh shit!' factor. Addressed many of the issues people have been complaining about of the show. Tied in previous episodes, not self contained, surprise stars left out of credits and put in at the end.
Can't wait for next week which I believe is the finale?
Exactly. We've already seen in Loki that there are a ton of them; TVA had a drawer full of discarded infinity stones.
So this episode would seem to imply that the destruction of a universe is an event that can create one.
Ok, one small nitpick: Strange is told it's impossible to save Christine because then he wouldn't become sorcerer supreme and stop Dormamu. However we've already seen from the 'main' timeline that that simply isn't true.