Integrated Camera Suddenly Stopped Working

Before someone replies with a canned response, I've tried the following,

1. Uninstalled/re-installed drivers

2. Checked Camera Privacy Settings for affected programs

3. Checked BIOS> Miscellaneous Devices to see if integrated camera was disabled within BIOS itself.

4. Tried updating drivers (reports back that WIndows has already installed the best available drivers)

5. Uninstalled Anti-Virus/Internet Security Suite

This is what the Camera App's viewfinder looks like,

Camera App Blank

Do you have any other suggestions besides what I might have tried above? My last resort would be to do a clean install, because I don't have a spare HDD to backup my existing files/programs and licensed copy of software (it would be painful to let the IT team intervene and wait for them to deploy end-point policies on my spare BYOD work device).

I also ran diagnostics and here's the result for Integrated Camera (if it helps; the device in question is Dell Inspiron 13-5378, but I have read online that this is persistent across many other Dell Inspiron models),

Integrated Webcam

Edge Detection Test Test Started   11-10-2020 20:19:53 Error Message: Unable to capture video frames. 11-10-2020 20:26:58 Test Finished: Failed (Error code: WWC09-VTL) 11-10-2020 20:26:59

Luminance Depth Test Test Started   11-10-2020 20:27:00 Error Message: Unable to capture video frames. 11-10-2020 20:33:45 Test Finished: Failed (Error code: WWC08-5JJ) 11-10-2020 20:33:47

RGB Channel Test Test Started   11-10-2020 20:33:48 Error Message: Unable to capture video frames. 11-10-2020 20:40:34 Test Finished: Failed (Error code: WWC05-OEN) 11-10-2020 20:40:35

RGB Color Depth Test Test Started   11-10-2020 20:40:35 Error Message: Unable to capture video frames. 11-10-2020 20:47:19 Test Finished: Failed (Error code: WWC07-WJS) 11-10-2020 20:47:20

RGB Line Amplifier Test Test Started   11-10-2020 20:47:21 Error Message: Unable to capture video frames. 11-10-2020 20:54:06 Test Finished: Failed (Error code: WWC06-IDT) 11-10-2020 20:54:06

RGB Line Driver Test Test Started   11-10-2020 20:54:06 Error Message: Unable to capture video frames. 11-10-2020 21:00:51 Test Finished: Failed (Error code: WWC04-Y0Y) 11-10-2020 21:00:52

RGB Pixel Test Test Started   11-10-2020 21:00:52 Error Message: Unable to capture video frames. 11-10-2020 21:07:36 Test Finished: Failed (Error code: WWC03-11U) 11-10-2020 21:07:37