Screencast keys is now an external addon (it was formerly distributed with blender, but has since been removed).
https://www.blendernation.com/2019/01/13/screencast-keys-add-on-now-supports-blender-2-8/
https://blender-addons.org/screencast-keys-addon/
https://developer.blender.org/T74679#:~:text=In%20the%203D%20View%2C%20hit,corner%20of%20the%203D%20View
LWSDebugOut.txt is a logitech file that captures errors. In my case 1.8GB of errors. This is because a new error record is appended every 5 seconds that the webcam is not connected.
The file is ok to delete. Better yet, Windows 10 can control the camera, so might as well uninstall the program.
- deleted, made read only, and stopped its insatiable growth desires at 8K.-