My 2019 Carrot2 search – multi-column results fix has updated, with a new Stylus CSS for 2021. The new fix gives this innovative clustering engine a working multi-column look, useful for widescreen researchers using desktop PCs.
Scroll down the original post to get to the new CSS. You need the Stylus browser plugin for your Chrome-based browser to use it. May not work in Firefox or Pale Moon.