Fandom wiki is limiting. couple things you can do: If you login things are better and on most pages the right side bar is gone. Also set browser zoom to 90%. We have to consider how the page looks on mobile too. please find an article about customizing with use of an adblocker in the forum/general. You can get it fully like old wiki if you want to. As you can see my wiki has full width tables and is ad-free.