Yea I’d agree with that. My strategy has been to make folders for each campaign and use one world for multiple campaigns.
The 5E creation wizard module works pretty well but you still need to track changes with the book because it’s not perfect. It does levels pretty good too.
Since I’m using docker, I am considering using a second instance for another license. That way I can have two worlds always up, and with NFS mounting I can share art assets between both of them.
That being said, if you find a character manager please reply to this post. I’m always interested in that stuff. But I don’t have much hope since WotC is a bag of dicks (someday my campaign will go to pathfinder).