There is a common misconception that SPICE is "just for Linux." The spice-guest-tools are essential for Windows guests. Without the QXL driver, Windows will fall back to a generic VGA adapter, which caps your resolution and performance. If you are running Windows 10/11 on KVM, do not skip this step.
Unlocking the Potential of SPICE: Why You Need spice-guest-tools in Your VM spice-guest tools
Take five minutes, install the tools, and enjoy the true power of KVM/SPICE. There is a common misconception that SPICE is
The spice-guest-tools package is a bundle of drivers and agents that bridge the gap between your hypervisor (libvirt/KVM) and the guest operating system. While SPICE handles the protocol (display, mouse, audio), the guest tools handle the optimization . install the tools