Anyone Else Notice Their VPN Stops Mid-Call on iOS? What’s Going On?

Has anyone else had their VPN just die right in the middle of a call on iOS? It’s been happening to me a lot lately, especially during FaceTime and WhatsApp calls. The VPN reconnects a few seconds later, but the call usually drops or the other person can’t hear me. I’ve already reinstalled the app and even tried a different VPN service, but no luck. Wondering if it’s something with iOS settings or just bad VPN servers.