Footage is perfect in Premiere pro but when exported via PPro or AME, there's artifacts in frames

OK - now makes sense if Sumeet asked you to do that for problem tracking.

If you have time, try the Constant Frame rate test for one or two clips. Go back to NVidia Encoding Hardware enabled once Sumeet has completed the checks he requires, as I don't want to divert you from that.

Thanks for .txt file. That file I presume, is the original media you are editing?.

It is variable frame rate which can cause some issues occasionally.

If you are familar with Handbrake or Shutter Encoder you can re-encode your footage to Constant Frame rate.

Then as a test, replace one of your media files on your timeline with the Constant Frame rate version. Keep your edits of course.

Then try exporting that portion only of the timeline with in/out points as a short test

You should not need Max Render quality or Max depth ticked.

I noticed the bit rate of the original file is 2597KBs which is quite low. You would expect normally 8 - 10MBs for reasonable quality.

Try exporting with another preset such as You Tube or Vimeo HD.

Let us know how you get on.

By the way - why are you using Open CL and not CUDA renderer for an NVidia Card?. Open CL will work but CUDA is normal choice for NVidia.

Is your original footage Variable Frame Rate?.

Use MediaInfo tool to show characterisitics of your original media and post here (.txt version)

https://mediaarea.net/en/MediaInfo

Try updating or rolling back your graphics driver directly from the video card manufacturer’s site. Do a clean installation of a Studio Driver (NOT the Game Driver).