> I was under the impression that OpenRC and systemd support similar parallel service startup features
It's not enabled by default in OpenRC because it's not stable.
> WARNING: whilst we have improved parallel, it can still potentially lock the boot process. Don't file bugs about this unless you can supply patches that fix it without breaking other things!
https://github.com/OpenRC/openrc/blob/ea310b2e580a25038f9592...