Disable Winbar
By default AstroNvim enables the new winbar that comes with Neovim v0.8+. Some users may not like this behavior and prefer to not have a winbar at the top of each window. You can do this by overriding the heirline plugin configuration.
return {  plugins = {    {      "rebelot/heirline.nvim",      opts = function(_, opts)        opts.winbar = nil        return opts      end    },  },}