Using the the per-monitor scaling setting of the currently logged in use doesn't make a lot of sense in the greeter, because there is no logged in user.
The only sensible thing is a best-guess attempt, knowing that hardware has a tendency to lie about its specs.
Using the the per-monitor scaling setting of the currently logged in use doesn't make a lot of sense in the greeter, because there is no logged in user.
The only sensible thing is a best-guess attempt, knowing that hardware has a tendency to lie about its specs.