Always use properties.
MODIFY
WalletWasabi.Gui/Controls/LockScreen/LockScreenViewModelBase.cs
WalletWasabi.Gui/Controls/LockScreen/LockScreenViewModelBase.cs
@@ -15,7 +15,7 @@ namespace WalletWasabi.Gui.Controls.LockScreen
public LockScreenViewModelBase()
{
- _isLocked = true;
+ IsLocked = true;
Disposables = new CompositeDisposable();
}

Always use properties.