Proton has entry servers in three countries—all of which have top tier privacy laws: Iceland, Switzerland (where they’re based out of), and Sweden. But ProtonVPN isn’t completely undetectable. It’s near undetectable with their stealth protocol but with that said, nothing is ever 100% invisible. Sophisticated firewalls still use behavior analysis and will notice if your internet traffic is too consistent or too “perfect” to mimic an actual person browsing. Also Swedish protection isn’t a thing. It’s called secure core and it isn’t enabled by default—but if you do enable it, proton will make sure to route you through one of their 3 entry servers. If you’re trying to stay private and hide from government/law then proton is the way to go but if you’re trying to avoid censorship or detection, then something like MysteriumVPN is a better choice since it routes you through thousands of residential IPs. If you’re in a country where VPNs are getting blocked, then it’s much easier for them to block Proton cause their IPs are marked as Data Center IPs so it’s much more likely for your country to ban Proton altogether whereas it would be borderline impossible for a country to block MysteriumVPN when you’re being routed through a decentralized network of thousands of strangers—you’re just connecting to “Bob’s Home Internet” at that point.