Does preconnecting to our own host effect loading speed?

I was reading about preconnecting scripts in order to speed up site loading. I had this question which I searched for and found nothing. Maybe because it doesn’t make any sense. Anyway, here’s the question:

Does this effect load speed?

<link rel="preconnect" href="/images/">

By /images/ I mean the images folder in the same host that the index.html file exists in.

Alternatively, I can explain like this:
Imagine example.com is the same host that hosts the index.html file which has this piece of code in its header tag:

<link rel="preconnect" href="example.com/images/">

And of course, any image in the site is in the images folder. Now, does that work?