Judging from the information on https://wiki.netbsd.org/ports/, this is true, but not as true as it might appear at first glance. Linux for VAX is an obsolete(?) specialty port not available from most distros, and Itanium support has recently been discontinued, but I think Gentoo supports all the other variations listed. So BSD comes out on top by a hair due to continuing second-class VAX and Itanium support. The rest is just lumper-versus-splitter stuff.
Pretty sure that compared to NetBSD, Linux still runs on relatively few architectures. 😝
Judging from the information on https://wiki.netbsd.org/ports/, this is true, but not as true as it might appear at first glance. Linux for VAX is an obsolete(?) specialty port not available from most distros, and Itanium support has recently been discontinued, but I think Gentoo supports all the other variations listed. So BSD comes out on top by a hair due to continuing second-class VAX and Itanium support. The rest is just lumper-versus-splitter stuff.