Assuming that you’re past the “opt out point” (and if it’s giving you BfA quests, you are) you’ll need to quest through the BfA intro on the level 10. It doesn’t take too long to do, and has the advantage of opening up the Boralus/Zuldazar portal which is nice for low level characters. (I typically do the tutorial/Bfa intro when I do exile’s reach for that reason — it’s also important to note that if you haven’t done the BfA intro on a character, it can interfere with some of the high level Cata breadcrumb quests — another reason to just do the intro.)
Once you get the “Come Sail Away”/“Welcome to Zuldazar” achievement, you can just head back to the main city and Chromie should be available on them. As you’re doing the intro, when you get to the quest to check the scouting map, you don’t actually have to select a zone to get quest credit. You can click the map, close the map, and turn in the quest. (Or, you can just abandon the zone starter quest if you do pick it up and don’t want it in your log while you do other expansions.)