Editing WordPress header will predominantly depend on what customization options your theme (or page builder) provides.
Premium themes usually provide a user-friendly way to make your heading look exactly the way you want it.
So, the first option would be to check if your current theme has an in-built way of editing the WordPress header.
Elementor offers a Theme Builder capable of customizing WordPress headers too:
So, using a theme builder is probably the most beginner-friendly (and user-friendly) way of editing WordPress header at the moment.
Without something like a theme builder (or alternative built-in functionality), you will most likely have to deal with code.
Other ways of making edits to WordPress header are:
