How does the Warband system work as far as quests go?

Coming back to the game after dipping during 9.0 and I’m confused by the Warband system - specifically how it interacts with quests. Tried to go to Silverpine Forest on an old alt that had never been there and there were no quests - is this because I’ve completed them on another character? Is there a way to opt out of Warband progression? Had similar issues when trying to level a new Zandalari through BFA Chromie Time, it freaked out during the intro, assuming it’s a bug with the shared progression.

The quests should be available to your new character.

Maybe they are not being shown.

You have the option to switch off the DISPLAY of quests that others in your Warband have completed.

Above your circular minimap on thetop right ofthe screen there is a black bar.

On the left of that bad is actually a button, though it doesn’t look like it.

If you click that button, you should be able to see what is turned off in you rminimap.

Tick Warband-completed quests back to visible.