FWIW, Linux is not the only OS looking into dropping 32bit.

FreeBSD is dumping 32 bit:

https://www.osnews.com/story/138578/freebsd-15-16-to-end-sup...

OpenBSD has this quote:

>...most i386 hardware, only easy and critical security fixes are backported to i386

I tend to think that means 32bit on at least x86 days are numbered.

https://www.openbsd.org/i386.html

I think DragonflyBSD never supported 32bit

For 32bit, I guess NetBSD may eventually be the only game in town.