Does not look like we needed that change after all

themes/catppuccin/neovim.lua

@@ -7,7 +7,7 @@ return {
   {
     "LazyVim/LazyVim",
     opts = {
-      colorscheme = "catppuccin-nvim",
+      colorscheme = "catppuccin",
     },
   },
 }