looking for self-study material libvirt/kvm/qemu

[Gunnar]

    I am doing a retraining as IT-specialist atm and have 2 weeks full
    time ahead to dive into virtualization.
    
    The main training will we looking at Hyper-V which I have not
    interest whatsoever in.
    Now I want to get a good grip on the libvirt/kvm/qemu side of things
    and am looking for good learning resource to dive into for this.
    Can anybody recommend anything?

• I like video but am able to read
• "just google around a bit"/"search on youtube" is not the kind of recommendations I am up for (I will do this if noting else comes out of this anyway)
• I'd like to go from 0 to hero (even though I am a bit above 0 already, but like to start from the ground)
• alternatively proxmox would be a topic worth considering for me

looking forward to any recommendation in this.

thx and best

Gunnar