Personally, as someone who returned recently after a long break, the new maps absolutely suck with the gimped ass mount they give you. Even after unlocking a bunch of masteries it's still a massive chore to navigate around the map. You mostly go around doing limited time events and especially rifts (which could point you to a part of the map you can't directly travel to) where if you don't get enough "contribution" before the timer ends it doesn't count.
Absolute garbage map and mount mechanics design for this expansion sadly and I've already put it down for something else.