Short version: if I don't want to access my MC library from outside my LAN, and I don't want to connect MC to anything besides other MC instances in my LAN, is it OK (from MC's perspective) to disable UPnP on my WiFi router?
Long-ish version: I'm trying to beef up the security of my home network. I definitely know that I don't want or need UPnP for anything - other than, possibly, MC. I have one computer which hosts an MC library, and other computers on my LAN, each running MC; these other MC instances load the MC library from the host, and play from that library locally. I never access my library from outside of my LAN. In this configuration, does MC need or use UPnP?
All machines are Macs running recent Monterey macOS. All are running up-to-date "stable" MC - i.e., today that would be 28.0.79.
Thanks.