MeduzaVPN runs on its own server with its own IP address. You choose the country you connect through, and if one protocol doesn't work on a particular network, you switch to another.
MeduzaVPN isn't available in every regional App Store. If you can't find the app in yours, change the country or region of your Apple Account.
Settings → your name → Media & Purchases → Country/Region → choose a new country or region.
Apple’s official guide: Change your Apple Account country or region