The closest thing I've to a fandom would prob be when i was 7-9 when i used to like FNAF and Bendy, with a hint of Undertale, but even at that age i used to despise MLP and BFDI and couldn't comprehend how anyone could like it, even cacas.
Apart from that i used to Transheart Madness Combat and still do, not as much doe. (Idk if Madness Combat counts since it didn't really have a "fandom" up until FNF Pedos got to it, but the actual MC Old Guard who are the ones that make the animations and collabs seem to also hate FNF and the xeople who draw Deimos/Sanford Yuri, they also might be the ones who made the original FNF Pedo neutralplier but snopes still has to fact check dat thang.)