Game crashes with DXGI_ERROR_DEVICE_REMOVED error

In the event your card is faulty, try playing R5 Reloaded. It is not affiliated with EA or Respawn, and it's an old Apex leak turned into a mod-able game. Because it's an 'older' version of the game, if it runs just fine, then you can suspect that it may have something to do with Apex itself, which could also mean bad sectors or something to do with where Apex is located on your drive.

Use an Alt account if you try this, as you may be banned.

Sorry, but I ran out of ideas for fixing this. You don't need to try this if you don't want to.

Best of luck.

Thank you for your response. 

FAILING STORAGE

I currently have only one SSD in my system, so I can’t fully test the storage. However, I could run it on an HDD if that wouldn’t make things worse...

Disabling the XBOX game overlay

I tried disabling all possible overlays - no difference

Recently, I experimented with modifying the Windows Registry to help with DirectX 12 issues. Based on the documentation at 

https://docs.microsoft.com/en-us/windows-hardware/drivers/display/tdr-registry-keys

I added a TdrLevel value of 0 and a TdrDelay value of 10, also disabled integrated cpu graphics in bios. After making these changes, capping my FPS to match my monitor’s refresh rate(165ghz), removing the +fps_max unlimited launch parameter, and setting the resolution to 4K DSR(on my full hd monitor), I was able to play for over 6 hours without the crash(80-99% load on gpu). However, when I set unlimited FPS getting 100% GPU load, the game crashes as usual. I'm also experimenting with different undervalting presets to get less power draw on my gpu, reducing clock speeds to a minimum in afterburner - it doesn't help. At this point, I don't know what else to try, so I might just play other games hoping my card is not faulty

I Had the EXACT same problem with both of my older GPUs. I ran Apex during S17 and S18 on my GTX 660 just fine, but after I switched to a PC with more RAM, I got the same error. I spent days going into every fix available and the most that I can tell you is that it has to do something with Apex somehow 'digitally unplugging' your GPU, if this is the same problem that is.

I tried both AMD and NVIDIA GPUs and I think it might have something to do with the motherboard and/or storage.
regardless, IDRK what the exact problem is, and you'll just have to try: compatibility mode, DPI settings, Disabling the XBOX game overlay, RGB apps etc.

Also, when I had this problem, it was on launch, and after the EXACT same error message, my game would crash. (the intro animation would just be a black screen with glitchy sfx). But if your error happens during gameplay, then try checking your storage. In the past this problem has been due to FAILING STORAGE, whether HDD or SSD. 

TL; DR

Try a new SSD/HDD, and if that doesn't work, repeat the steps you tried in your post for the new/different drive.

Best of luck, I hope you get it working (I never got mine working)