Current OpenBSD Platforms [0]:
alpha
amd64
arm64
armv7
hppa
i386
landisk
loongson
luna88k
macppc
octeon
powerpc64
riscv64
+ ~20 retired platforms
OpenBSD 7.4 pre-built packages for each architecture:
aarch64: 11508
amd64: 11845
arm: 7705
i386: 10603
mips64: 8995
powerpc: 9683
powerpc64: 8351
riscv64: 10170
sparc64: 8469
aarch64
amd64
evbarm
evbmips
evbppc
hpcarm
i386
sparc64
xen
[ "Currently there are 49 NetBSD ports with Tier II status" ]
Don't know about NetBSD/pkgsrc software packages for each arch
"The NetBSD Project's goals
A project has no point if it doesn't have goals. Thankfully, the NetBSD Project has enough goals to keep it busy for quite some time. Generally speaking, the NetBSD Project:
provides a well designed, stable, and fast BSD system,
avoids encumbering licenses,
provides a portable system, which runs on many hardware platforms,
interoperates well with other systems,
conforms to open systems standards as much as is practical.