Head scale would be a self-hosted way of doing this as well.

• You'd install headscale publicly accessible on your VPS or port-forwarded server.
• You'd configure your phone and any laptop you travel with using the tailscale apps with the special hidden setting to use your custom control-server.
• Now any apps you want to access yourself but not for the public unauthenticated internet to see, you bind to tailscale/headscale interfaces rather than public interfaces.
• Anything you DO want publicly accessible (for example immich for image sharing to friends who aren't on your tailscale network) you host the normal way by binding to a public interface.

You could also do this with regular tailscale and cut the self-hosted headscale out of the picture.

But by doing this or another private VPN setup, you take the listeners for some of your apps off the internet and reduce your attack-surface. It obviously doesn't help for WordPress or other stuff you actually want to share publicly, but it can give some peace of mind for personal services like bitwarden or Jellyfin.