What is the best way to load vue styles?

Question

Layout

Hello!
I decided to learn lazy loading, and I don't know how to load css styles correctly.
There are two options:

1. Load styles separately (in parallel with n.bundle.js)
   
2. Load styles in n.bundle.js
   

There is no difference in download speed.
Tested in disable cache and slow 3g

In one of the components (0.bundle.js) in the style tag, I inserted a css library weighing 270 kb, for clarity.
In the first case, 0.bundle.js is loaded earlier, only then 0.style.css is loaded. But at the same time, the inscription, "welcome to page 3" appears only after loading 0.style.css (why?), although js has already been compiled.
In the second case we have 0.bundle.js along with css inside.
So, what is the best way to load css and how do you do it?