Zero people around!

So I’ve come back to wow after leaving around BFA time and at that point this server was bustling on both factions.
Since coming back, I’ve only been able to access one guild after about 20 applications. That guild has a had a maximum of 5 people online at any one time.
I’ve only ever been able to complete world missions when I happen to encounter some alliance on the same quest and I’ve never thought to check if they are even FROM my server.
Have i missed a step on how this game’s supposed to work now??