The Quuuuuill

This is a scenario where a single node VPN would reduce, not increase OP’s security stance. You do have to worry about NK hackers breaching your services because they’re all exposed through the single node VPN server. Same attack surface, less knowledge needed to hit the target with the payload.

VPNs are not a panacea by any stretch of the imagination. they are good for certain use cases but from OP’s description they would do next to nothing