Hi there,
I'm Cherrelyn and I'm here to help.
What you’re seeing is likely a combination of how Windows handles network and display states after the lock screen activates. Windows may temporarily drop network connections and reset display arrangements, especially with dual monitors and HDMI. While it’s intermittent, there isn’t a specific setting to fully prevent it. Ensuring your network drivers and graphics drivers are fully updated can help reduce the frequency, but occasional reconnections and window rearrangements can still happen.
I hope this will help and if you have any question please feel free to ask.
Warm regards,
Cherrelyn