Tiny Core Linux is the rare exception, being that it's a Linux distro targetted specifically at running at 10MB and running on Windows 95 era systems. Its minimum processor is i486DX (Intel 80486 processor with math coprocessor) and its recommended processor is the first generation of Intel Pentium.
Juanito (one of the Tiny Core Linux Forum administrators) did respond with "That's the aim – if possible" to the in-forum wishes of continuing i486 support, but continuously patching newer and newer kernels may be a cumbersome effort,
With all of that being said, do you guys think Robert Shingledecker and the TLC community will continue support on i486 and continuously patch the Linux kernel, stay in the older kernel and add features and security patches there or bite the bullet and move to i686?
PS. Hello from Windows 10! I may switch my PCs from Windows 10 and macOS Sequoia/Tahoe to Linux Mint and Lubuntu. I haven't used Linux much thus far, but I've been following the Linux sphere for a little bit. I ask the titular question mainly out of curiosity.