That's surprising. What is the 486 missing that Linux needs? Or is it that there are no volunteers to test and maintain Linux on a 486 (as often happens with older architectures)?
https://lore.kernel.org/lkml/20250425084216.3913608-1-mingo@...
https://lore.kernel.org/lkml/CAHk-=wicfBCyMj_x5BiL32o55jqXfn...
https://lore.kernel.org/lkml/CAHk-=wjCiEk-kc-vOug2GKJdhHKce3...