I also have a 240 Hz monitor. Although capping the game at 144 Hz helped, I still get “device hung/device removed” error, although less than before.
I have tried a commonly posted regedit that did not work, however, I discovered the reason why is that in Windows 10 1909, there is an additional registry key that overrides it. Deleting this key seems to have solved the issue, though I’ll need more testing to be 100% certain. So far, I’m only 2 hours in at 240 Hz/fps without a single issue. I’ll follow up if I can continue without errors.
Update: I was on a lucky streak of no crashes, but my luck ran out. I had 5 crashes, the last of which locked up my PC. I was forced to do a hard shutdown. After that, my PC would not boot, I couldn't even launch in Safe mode, or use the windows recovery tool. I could only access the BIOS. I had no other option but to re-install windows from scratch. Now on a clean install, I'm still getting crash to desktop without an error/message. I'm also occasionally getting DXGI device removed/hung. I have nothing running on my PC except WIN 10 Pro (upgraded from home on the re-install), Origin, and Apex, No OC, nothing, everything set to stock. My WIN 10 and Nvidia drivers are updated to the most current version/patch. I can still reduce my crashes by using Origin launch options to limit my fps to 144, but it's not 100%. I'd bet if I capped my fps even lower, say to 60, it would 100% solve my issue, but then what would the point be in playing on (a high end) PC? EA/respawn, please figure this out.