I THINK I have narrowed it down to the graphics cards being different on Macs vs. PCs. I don't know much about this subject, researched it, turned off the D3D11 swap chain settings and it doesn't seem to be crashing anymore (will have to do more testing to make sure), but the build is extremely laggy on PC but not Mac. I don't think it is the virtual desktop because it seemed to run the same when I was playing the game and doing other things on it. The reason I think it is the graphics card and not something else is because of this:
https://forum.unity.com/threads/constant-crashes-failed-to-present-d3d11-swapchain-due-to-device-removed.987834/page-2Note that I never tried it on anything below Windows 10, and according to this, I think that is more evidence that this is the problem.
So here is my question now: What can I do to make it run better on PC? Not general things like performance in making the game, but things that are specific to PC, or more specifically, the graphics cards within. I tried a few things within the Project Settings, but if anyone could give me a list of things that could be helpful, I would be extremely thankful. Remember, it runs fine on a much weaker MacBook Air than a powerful PC. Also, please let me know if any of my reasoning is not sound. Thanks!