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Proton VPN free VPN test: Telegram media upload in Germany

I tested Proton VPN on iPhone 15 / iOS 18 from Germany. The goal was not only raw speed but practical stability: connection start, reconnect after sleep, DNS leak behavior, app store availability, and whether free limits are clear. The result depends heavily on network quality and time of day. A free VPN can be enough for light browsing, messaging, or a short privacy check, but it may not be reliable for video, calls, or work. Please share device, OS version, network type, region, VPN app version, and the exact symptom so other members can compare real conditions.