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Linux kernel will soon drop ~~i386~~ (32-bit) support
(web.archive.org)
"In a time where computing epitomizes industrial waste, permacomputing encourages the maximizing of hardware lifespans, minimizing energy use and focussing on the use of already available computational resources." (from the permacomputing wiki)
See also: !permacomputing@slrpnk.net
The Linux kernel dropped i386 support back in 2012: https://www.phoronix.com/news/MTI0OTg
I think any reference to i386 nowadays really refers to i686. Debian, for example, officially dropped support even for i586 with Stretch back in 2017: https://web.archive.org/web/20170701011018/https://www.debian.org/releases/stretch/i386/release-notes/ch-information.en.html
So I think the linked article really does mean that they are dropping all 32-bit x86 support.