I'd still recommend getting an AMD graphics card and generally prioritizing hardware with upstream drivers. As in, drivers that are included with the kernel itself. The experience is always better. Overall it's still a good habit to look up how any hardware runs on Linux before buying it.

Gaming in a Windows VM is possible but it was a big ordeal when I did it. You have to make sure your CPU and motherboard support IOMMU for PCI passthrough. It's less of a problem nowadays but there are still some pitfalls with PCIe lanes and whatnot. You need two video adapters, one for the host and one for the guest (because the host has no access to the passed-through GPU) and if you want to game on both Windows and Linux that can be a pain in the ass. It goes on. I personally don't recommend it. If you have to play trashy eSports that ship with built-in anti-cheat malware then just Windows for that.