Since my iGPU and dGPU have more or less the same power, for me it made no difference which one I kept for gaming.

p.s. I game inside my VM, which gets the RX570 passed through to.

I have the same processor and an RX570. I can pass through the dGPU to the VMs and keep the iGPU for the host, but the reverse was not possible for me.

Does the motherboard matter for this? Mine is not so fancy.

Valve Index works fine under Linux.

Meh, I never need more than 2G usually and that too only when Firefox is running.

The Windows XP and Windows 7 I have are also from my university, from a long long time ago.😃

I have probably a couple of more Linux/BSD VMs than here (with some with GPU passthrough and one or two for ARM crossbuilding and so on) but only 2 Windows VMs - the only 2 I have legitimate licenses for.

But am I normal? Most would disagree. 😅