Is not necessary to be connected, when you make GPU Passthrough on Proxmox it uses your native video card in order to share it with your virtual machine. So you can get full acceleration hardware. Instead of using a virtual GPU With no acceleration.
Cuz of this you might to see slow the experience, because you are not doing GPU Passthrough.
Obviously that YouTuber "Morgonaut" don't wanna share her knowledge freely, she said that "is her work and months of investigation and very hardworking" and blabla bla, she has a personal forum where she offers paid support.
But you don't need this, actually there's many tutorials about it, like this:
This guy shows you how to make your Proxmox Hackintosh from scratch and also he teach you how to make the "Holy Grail" GPU Passthrough.
As Maldon said it's virtual machines, but at difference between VMWare, Parallels, VirtualBox and others is that it uses Hypervisor that uses you hardware most closely, without using external layers of software that makes a virtual machine very slow.
Here are many advantages to use a VM in Proxmox instead of a native install:
- If you wanna use your VM in another Proxmox server, that has a different kind of processor (AMD, Intel), you can make it work just by changing a few lines in config file.
- you can clone the machine and make backups faster.
- If you have a powerful GPU, and if you have several virtual machines, example: A Hackintosh and a windows VMs. So, you can run it at the same time, at different port of your GPU Card, and it makes you have two running machines in separates displays. Additional of it you can install "Barrier" in order to share your mouse and keyboard on both machines.
- Because you are using a special version of OpenCore for virtualization, it makes you adapt your hardware without fighting with kexts (Audio, Network and CPU). As I said before, you must to set GPU Passthrough to get full acceleration.
- Related to last item, Is very useful in order not to fight at buying time, you get rid of buying the right compatible components to build your Hackintosh. So it makes your life easy.
- Proxmox it only uses 1gb of ram to run the main OS, cuz of this it make it very smooth and light.
- And the most interesting you can run it as I said, run it on Any hardware, for example the latest Intel 11gen that is not supported natively and AMD Latest Ryzen and Threadrippers