If you're using a VPN app to block ads or secure your Galaxy's internet connection, Samsung has decided that you need another non-dismissive One UI notification to tell you about it. Not just a status bar indicator like Bluetooth or Wi-Fi, but a full-size alert that can't be closed. The whole time your always-on VPN is active.
Samsung also chose not to disable these notifications in your phone's settings. Fortunately, there is a third-party app that allows you to return control of the phone you spent your hard-earned money on – at least when it comes to notifications. Appropriately named Hide Persistent Notifications app, you can easily hide any warning, and it doesn't require any root or complicated ADB commands.
: Install Hide Persistent Notifications
You have the Hide permanent notifications app to get the ball rolling. It costs $ 2.49, but if you own a Samsung device it's worth it. It also allows you to hide all other annoying, persistent notifications from One UIs so the value factor only increases if you hate vague software.