I am using Django 3.0 and I was wondering how to create a new database table linked to the creation of each user. In a practical sense: I want an app that lets users add certain stuff to a list but each user to have a different list where they can add their stuff. How should I approach this as I can't seem to find the right documentation... Thanks a lot !!!
This is too long for a comment.
Creating a new table for each user is almost never the right way to solve a problem.  Instead, you just have a userStuff table that maintains the lists.  It would have columns like:

userId
stuffId

And, if you want the stuff for a given user, just use a where clause.
A new table for each user created