I do. I like to stream music from my server onto my phone when I'm out and about. And it's authenticated, so there's nothing terrifying about exposing it (security vulnerabilities aside, but that can happen to any software you expose).
If it's only your own clients connecting to it, have you looked into Tailscale? Even as a selfhost-all-the-things type of guy, I've been convinced. This is exactly why I started experimenting with it too, due to Android now allowing multiple VPNs at the same time. It replaced my previous setup of hosting parts of my homelab technically exposed to the internet, which were only used by my phone since it already had an always-active mullvad.
If it's only your own clients connecting to it, have you looked into Tailscale? Even as a selfhost-all-the-things type of guy, I've been convinced. This is exactly why I started experimenting with it too, due to Android now allowing multiple VPNs at the same time. It replaced my previous setup of hosting parts of my homelab technically exposed to the internet, which were only used by my phone since it already had an always-active mullvad.