That’s not what the secure desktop is. Windows has the normal desktop that shows your programs and separate desktops for special purposes. There is a desktop w

That’s not what the secure desktop is. Windows has the normal desktop that shows your programs and separate desktops for special purposes. There is a desktop where your screensaver runs. So if your screensaver crashes it is not possible for your screen to show up. Another desktop is where the login screen is on. Normal programs can’t connect to that desktop so they can’t capture your keystrokes as you type your password. This isn’t about ‘walled gardens’.