Every so often you run into an occasion where you want a title to enter (or leave) frame by moving on the Z axis. The best way to create this illusion in a 2D environment is to scale the title graphic up. Of course, any time you scale any pixel-based graphic up, you'll see softness best-case...worst case it will start to look like the cubic environment of Minecraft. Either way, it won't be good.
In Adobe Premiere Pro, your title document size is determined by the sequence that has the focus when you start to create a new title.
*Fair warning: on a system with limited RAM or installed GPU, working with lots of 4K titles can start to bog things down, but when you need one to scale up, it's worth the hassle.