With regards to NordVPN being on the not-working list....It does work (in OpenVPN TCP mode) with iCloud private relay disabled, as per @gilby101 post #240. I've not tested the other modes, but will do when I have a little more time. I used the direct DL version of Nord, but don't see why the MAS version would be different.
One thing I've noticed in the 3rd beta is that when disconnecting from NordVPN I get a notification from the OS that iCloud Private relay has detected that my connection is not protected and therefor iCloud private relay will be enabled (note* iCPR does not enable even though I receive this message, so buggy). This could be an indicator that Apple are setting it up in such a way that it interacts with consumer VPN's in a smarter way.
In short, maybe NordVPN can be moved to working apps (with caveats listed), as per AdGuard?
One thing I've noticed in the 3rd beta is that when disconnecting from NordVPN I get a notification from the OS that iCloud Private relay has detected that my connection is not protected and therefor iCloud private relay will be enabled (note* iCPR does not enable even though I receive this message, so buggy). This could be an indicator that Apple are setting it up in such a way that it interacts with consumer VPN's in a smarter way.
In short, maybe NordVPN can be moved to working apps (with caveats listed), as per AdGuard?