So, here's the thing: I dislike Trivia sections, and consider them poor writing. Information that is just as valid as any other is shoved into the bottom of the page arbitrarily, past the lists of quotes and the gallery section, leading to a worse reading experience. Throughout my edits, I've made a point of moving information out of Trivia sections into more appropriate ones (see my revisions on Kris, Nobody, Police Station, and my very first edit on the wiki on Striped Bird).
There is something I would like to tackle next, but it requires a discussion to find a consensus. Namely, the information about character names that recieve special reactions in Undertale and Deltarune's naming screens (see Name and Introduction for further info).
Currently, every page except for Chara's lists their naming screen-related facts in their Trivia section, usually as the first bullet point. I think this is, at a minimum, unnecessary: there are a lot of better places one could place this information, that don't require the reader to scroll to the bottom of the page to find it.
My personal suggestion is moving it to the "Main story" section, right after the "History" subheader, if the character has one. The naming screens are the first thing the player sees of the game, so listing them before makes sense. However, there might be better ideas out there, so if you think you have one, I ask that you share it in the comments. Thank you for reading.