May not add security in and of itself, but it certainly adds the ability to have a little extra security. Put your reverse proxy in a DMZ, so that only it is directly facing the intergoogles. Use firewall to only expose certain ports and destinations exposed to your origins. Install a single wildcard cert and easily cover any subdomains you set up. There’s even nginx configuration files out there that will block URL’s based on regex pattern matches for suspicious strings. All of this (probably a lot more I’m missing) adds some level of layered security.
Gonna get downvoted for this probably but I honestly don’t care. I’m so sick and tired of hearing all the negativity and attacks and unrealistic over-the-top doomsday scenarios, from both sides. Regardless of who won, life is going to continue on just fine. The full on meltdowns are getting so damn old and it’s just tiring.