I suspect that since the borg needed such detailed info on picards body and they altered starfleet transporters that it only would work on "known" species in the federation databases.
Ultimately the assimilated just needed to out number and overwhelm the older old un effected backed up by complete computer ship control of all federation vessels. The plan never needed total assimilation.
SO my answer is that they would probably be immune.
I get 550Mbps on 5 ghz (80Mhz wide) with my iPhone 13 and I get 800-850Mbps on an iPad pro on 6Ghz (160Mhz wide). When in the same room as the AP. When not in the same room speeds are a bit all over the map.
This is via the speedtest.net app on a 1Gbit fibre connection.
I am using new U7 Pro Wall APs.