- install virt-viewer Windows installer - can be downloaded from virt-manager download page
 - download spice-guest-tools from here
 - install spice-vdagent on linux vm
sudo apt install spice-vdagent - start spice-vdagent (check if spice-vdagentd sevice started aswell)
sudo systemctl start spice-vdagent - enable SPICE in vm settings Hardware -> Display section
 
sudo lvresize -l +100%FREE /dev/mapper/ubuntu--vg-ubuntu--lvsudo resize2fs /dev/mapper/ubuntu--vg-ubuntu--lv