Looks like the #i486 #CPU architecture is being put out to pasture soon within the #Linux kernel.
https://www.phoronix.com/news/Linux-7.1-Phasing-Out-i486

Linux 7.1 Expected To Begin Removing i486 CPU Support
It's finally time: a patch queued into one of the development branches ahead of the upcoming Linux 7.1 merge window is set to finally begin the process of phasing out and ultimately removing Intel 486 CPU support from the Linux kernel
@claudiom @ParadeGrotesque
... it runs Doom err... NetBSD!😀