That is why there is the Gnome Tweak tool and Gnome extensions. You get a great out-of-the-box experience for regular users and good customizability for advanced users. If you want extreme customizability just don't use Gnome. IMO Gnome gets way too much unwarranted critique here.

I don't use Gnome because I find its out-of-the-box experience to be pretty horrible. I couldn't figure out how to fix it, and didn't know about these tools. But it's fine, I'm really happy with the DE I use.

The problem with fixing all its problems with extensions is that they aren't always updated in time for new releases.

And the tweak tool, sure but really the options in there should have been standard settings from the start. This is the core problem with this product.

Sadly, the settings app crashes if you choose the performance power profile... Tweak tool, otoh, works fine.