@Juan @Quad @nprofile1q... "open"BSD is even more absolutely proprietary.

Proprietary license, no source code;
https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/dev/microcode/atmel/atmel_at76c503_i3863_fw.h?rev=1.1&content-type=text/plain
https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/dev/microcode/atmel/atmel_at76c503_rfmd2_fw.h?rev=1.1&content-type=text/plain
https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/dev/microcode/atmel/atmel_at76c503_rfmd_acc_fw.h?rev=1.1&content-type=text/plain
https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/dev/microcode/atmel/atmel_rfmd2958-smc_fw.h?rev=1.1&content-type=text/plain
https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/dev/microcode/atmel/atmel_rfmd2958_fw.h?rev=1.2&content-type=text/plain
https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/dev/microcode/atmel/atmel_rfmd_fw.h?rev=1.2&content-type=text/plain
https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/dev/microcode/urtwn/microcode.h?rev=1.2&content-type=text/plain
https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/dev/microcode/rsu/microcode.h?rev=1.1&content-type=text/plain
https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/dev/microcode/rtwn/microcode.h?rev=1.1&content-type=text/plain
https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/dev/microcode/tusb3410/tusb3410.h?rev=1.1&content-type=text/plain

Weak license, no source code;
https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/dev/microcode/adw/adwmcode.c?rev=1.9&content-type=text/plain
https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/dev/microcode/adw/advmcode.c?rev=1.2&content-type=text/plain
https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/dev/microcode/afb/microcode.h?rev=1.1&content-type=text/plain
https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/dev/microcode/bnx/bnxfw.h?rev=1.6&content-type=text/plain
https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/dev/microcode/cyclades/cyzfirm.h?rev=1.1&content-type=text/plain
https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/dev/microcode/esa/esadsp.h?rev=1.3&content-type=text/plain
https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/dev/microcode/isp/asm_1040.h?rev=1.3&content-type=text/plain
https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/dev/microcode/isp/asm_1080.h?rev=1.3&content-type=text/plain
https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/dev/microcode/isp/asm_12160.h?rev=1.5&content-type=text/plain
https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/dev/microcode/isp/asm_2100.h?rev=1.7&content-type=text/plain
https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/dev/microcode/isp/asm_2200.h?rev=1.8&content-type=text/plain
https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/dev/microcode/isp/asm_2300.h?rev=1.6&content-type=text/plain
https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/dev/microcode/isp/asm_2400.h?rev=1.1&content-type=text/plain
https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/dev/microcode/isp/asm_2500.h?rev=1.1&content-type=text/plain
https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/dev/microcode/isp/asm_sbus.h?rev=1.7&content-type=text/plain
https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/dev/microcode/isp/Attic/asm_pci.h?rev=1.8.2.1&content-type=text/plain
https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/dev/microcode/kue/kue_fw.h?rev=1.2&content-type=text/plain
https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/dev/microcode/myx/eth_z8e.h?rev=1.3&content-type=text/plain
https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/dev/microcode/myx/ethp_z8e.h?rev=1.3&content-type=text/plain
https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/dev/microcode/myx/Attic/myxfw.h?rev=1.1&content-type=text/plain
https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/dev/microcode/neomagic/neo-coeff.h?rev=1.3&content-type=text/plain
https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/dev/microcode/typhoon/3c990img.h?rev=1.6&content-type=text/plain
https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/dev/microcode/zydas/microcode.h?rev=1.3&content-type=text/plain
https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/dev/microcode/ral/microcode.h?rev=1.9&content-type=text/plain
https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/dev/microcode/rum/microcode.h?rev=1.6&content-type=text/plain
https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/dev/microcode/symbol/spectrum24t_cf.h?rev=1.1&content-type=text/plain
https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/dev/microcode/tht/microcode.h?rev=1.4&content-type=text/plain

No license, no source code;
https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/dev/microcode/cyclades/cyzfirm.h?rev=1.1&content-type=text/plain
https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/dev/microcode/tigon/ti_fw.h?rev=1.1.2.1&content-type=text/plain
https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/dev/microcode/tigon/ti_fw2.h?rev=1.1.2.1&content-type=text/plain

Machinery that loads proprietary software directly onto the main processor (such software is automatically installed by "fw_update" without asking in the installer; https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/distrib/miniroot/install.sub?rev=1.1284&ipk=G0UhQfZ7CFN4x00Iw_YlTvA3OPqgG6r6A1RfqTDJnC8&content-type=text/plain);
https://cvsweb.openbsd.org/src/sys/arch/amd64/amd64/ucode.c?rev=1.1&content-type=text/x-cvsweb-markup

It turns out, in the typical BSD contempt for your freedom, if you visit the following URL, you will be maliciously redirected to a site containing unlicensed malware (LibertyBSD dared to point out that "fw_update" installs proprietary software without asking);
https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/distrib/miniroot/install.sub.diff?r1=1.653&r2=1.654&f=h