Cool idea, I almost forgot this feature even exists. I think I dismissed it the past when I realized it’s probably not going to be easy to switch VPN servers this way.

It does hurt, your VPN should support proper port-forwarding for soulseek to work well. In most cases, you will only be able to download files, but your shares will be inaccessible. It doesn’t seem to work with ProtonVPN for example, even when you built-in port-forwarding feature. And even if it did work, you would need to reconfigure and restart soulseek every time you reconnect the VPN, because their port-forwarding is randomizing the ports and there’s no way to turn that off.