There’s also a chance this Loki will run into a past version of himself, especially if he’s jumping through time like this.
If this is the same Loki from Avengers: Endgame, then this Loki could affect this new timeline in various ways that won’t necessarily affect the Avengers who survived in Avengers: Endgame.
With all this new information coming out, it’s worth noting the Russos confirmed Loki created a new timeline when he teleported away with the Space Stone.