Overall I like WordPress Twenty Twenty-One theme. But I have couple of issues with the theme. I wanted to have the option of a sidebar. It gives more flexibility. And I thought the container width is too narrow & content can be displayed on a bigger width. But these options are not customizable by default. I am no expert in modifying WordPress theme directly. So I didn’t want to tinker with the CSS or PHP code.
Options for Twenty Twenty-One WordPress plugin came to the party. I installed the plugin. And it gives a lot of options to change the layout & style of WordPress Twenty Twenty-One theme from ui without having to modify theme files directly. We can go to Appearance > Theme > Customize section as we would normally do & find the options as below screenshot.