Microsoft tightened the security of Windows 11 by adding TPM and Secure-Boot as the minimum requirement to install it. This article show how to enable TPM on KVM host and enable Secure-Boot for Windows 11 VM.
I use Virt-Manager (Virtual Machine Manager GUI for libvirt) to easily manage virtual machine on my personal laptop. It’s easy and works great for “normal use” of KVM/QEMU. But, you may need to do little extra steps to be able to share data between host and multiple Linux guests.