Is there a site that describes how to apply the technique from photoshop in gimp?

Question

GIMP

I have an idea to create a website. Those. to create a website.
Write on the site about how I created a menu for the site in gimp, with a shadow, a gradient, an inner glow. This will be an article telling how to style photoshop in gimp.
For example, there is a graphic editor krita that supports custom brushes (like in photoshop, only more advanced).
Of course, you can look for other programs besides photoshop, which we are used to in the windows environment.
The question is, does such a site already exist? In English?