How and when is the /Network symlink to /System/Volumes/Data/Network created?

Question

Problem: On boot, catalina doesn't seem to be creating /Network. However, after spending some time on the machine, I eventually get the symlink from /Network to /System/Volumes/Data/Network. I've read up on the new "firmlinks" for Catalina, but I can't find anything talking about the legacy location symlinks.

Question: Is there a delay or service that handles this? Can I force it to create these symlinks? We'd like to avoid changing scripts/commands that worked fine on Mojave (which had /Network on boot).

I want to also add that trying to create the symlink manually doesn't work because / is read-only: ln: /Network: Read-only file system