I’ve been toying with this idea but with a mesh network, in my case nebula, after experiencing a similar frustration with limitations on most client devices when trying to connect to multiple VPNs.
One question I’ve been trying to answer is if routing all of these devices to a single vpn endpoint has any negative effects on privacy. Would cycling the IP randomly help to prevent trackers from putting together a profile of activity?
I guess what I'm getting at is now instead of them tracing your activity to one browser or device, they can more easily group multiple devices since they're all using the same VPN IP.