This WordPress theme called Cols is adaptive. With higher resolution displays it will show 3 columns, lower resolution displays get 2 and mobile get one column that adapts to the screen size and resolution.

WordPress also forces us to the the Gutenberg editing mode which makes it more of a challenge to use HTML constructs like superscripts and subscripts etc. The classic editor is not available to the free tier.

The free tier is also not afforded any plugins so there is no way to use Google Analytics other other services.

This theme is also not possible to use carefully place advertisements other than had placed in-line ads.

Themes are open source so its possible to widgetize it to make it more practical for advanced users.