Right now, it’s not possible to show/hide annulled games in the game history. When “ranked” and “unranked” are not selected, you see all games, as expected. When only “ranked” is selected you see just the ones with colorful background, which also makes sense. When “unranked” is selected you see all the unranked games, created by deliberate choice. If I understood it correctly, the games without a colorful background can be unranked or annulled (annulled if there’s a strikethrough and the letters are grey since there’s no winner)
I believe that “annulled games” is such an important category that it deserves its own filter, resulting in the extra combinations “annulled ranked”, “annulled unranked” and only “annulled”.