If the issue is the sidebar:

https://addons.mozilla.org/en-US/firefox/addon/fandom-sidebar-remover/

Unfortunately…

Though, I do appreciate Fandom (former Wikicities; Wikia) for providing many awesome information people wrote and organized in the Wiki, including some I recall for video-games history even, as Serious Sam, Harry Potter, Celeste, Starbound, Minecraft etc. and for an chances to participate in these, too…

Yet, indeed… such an attitude may worsen the presentation and overall access to the system to the point many will just skip it leaving an invaluably marvelous underlying information unseen…
Others, with more time or support, may migrate, but where to find time for it to achieve properly, respectfully, accurately, and carefully…

Related:
- https://www.reddit.com/r/Adblock/comments/1vw2y2r/which_site_has_the_most_ads/p5dtlpj/
- https://weirdgloop.org/blog/why-were-helping-more-wikis-move-away-from-fandom
- https://weirdgloop.org/blog/we-wrote-a-guide (We wrote a guide to help you get your wiki off Fandom…)