I have been playing a lot of Harvest Moon: Friends of Mineral and memorizing what each character likes can be a bit daunting at times so I use it a lot. It also helps when you are trying to figure out certain character’s schedule and where specific items are found.
Lots of pages also go the extra mile and include a trivia section and a list of bugs.
It makes me wonder which other fan-made wiki’s are of impressive quality or even just which other wiki’s people have used.
I imagine Stardew Valley and Pokemon have some really good ones.
Guild Wars 2 has an amazing wiki. Hosted by the company itself and written and maintained by the community. No ads, no fandom bs. One of the best gaming wikis I have ever used. wiki.guildwars2.com
Adding as a reply to make a list:
Baldurs Gate 3 official + fan wiki is not Fandom. The Fandom one literally copies stuff off of that one.
Warframe has a community run wiki that is very in depth and abides by in-game spoilers. It is hosted on Fandom though.