What makes Linux appealing to me is the extent of customizability, but I didn’t find many answers when looking up with desktop environment is them most customizable. Some say KDE is most customizable than say, Gnome, but doesn’t Gnome support CSS customization while KDE doesn’t?
If infinite customization is what you’re after you shouldn’t use a DE. A WM like i3 och hyprland is much better suited for that
Agreed, but use sway instead of i3 for Wayland support.
Yeah roll your own everything even greeter is the way forward if you want to customise.