The downside of working in Edit Mode is that it’s inherently destructive, which means that each change is more or less final and it becomes hard to adjust previous changes later on in the process. With modifiers, you can work non-destructively and adjust the operation at any point in the future.
In this lesson, we touch on the Bevel, Array, Subdivision Surface, and Mirror modifiers, as well as how their order in the modifier stack affects the result. To get an overview of all the modifiers, check out my course, MODIFY.
Have a look at Jonathan Lampell's course on Geometry Nodes ASSEMBLE.
And you can find the mentioned Playlist HERE.