A100 vGPU vs MIG in KVM

We are running A100 PCIe 40GB in MIG mode in KVM (Ubuntu 22.04).
GPU is partitioned smallest size possible (1g.5g) and partitions are allocated as mdev links to virtual machines.

Now end users want that VM’s would compete for whole GPU resource.
There are some VM’s which need more GPU time to time.
My understanding is that this is not possible with MIG mode as partitions are fixed.
Then I found this article:

Article suggests about “Virtualization with vGPU” would be solution for this.
I haven’t just found any documentation how this should be configured and how it’s possible in KVM environment.
Is there any documentation how to configure A100 with vGPU but without MIG mode in KVM?