I’ve been away from WoW for a while. I’ve typically only ever do the campaign quests for story, the dungeons and raids at least once and then unsub. I bought the expansion several months ago after it was announced.
So I’m not up to speed on any new terms for events they’re using now.
Thank you for the insight
Sorry, didn’t know you where a returning player 
Wrapper quest is the quest that allows you to select from the different weekly activities. Much like the broken wrapper quest where you should have been able to choose which patch’s awakened content you did during DF S4. It just “wraps” around the other weekly choices to track if you’ve done the weekly quest you’ve selected. Think of it like a container for the weekly quest choices.
Actually I should clarify: it also includes weeklies that have multiple options to complete but you can only do one of them, not just the one where you’re given a choice through in-game menu. Again, just containers for all of the possible options to track if you have completed one of them already so that they don’t have to write a bunch of spaghetti code in order to track all of the possible ways to complete the different weeklies.
Ah thank you! I know exactly what they are now. I had never heard the term before (didn’t watch any of the dev stuff for most expacs past legion).