Gnome boxes

Gnome boxes is a hypervisor.

Cpu

The default cpu doesn’t have a lot of capabilities, so you might need to patch the config:

  <!-- https://www.qemu.org/docs/master/system/i386/cpu.html -->
  <cpu mode="host-model" />

Network

Default libvirt network interferes with gnome-boxes, you might need to disable it:

sudo systemctl disable --now libvirtd

Disk size

Just increasing the disk size is not enough, you need to increase the logical volume size:

sudo lvextend -l +100%FREE /dev/fedora/root
sudo xfs_growfs /dev/fedora/root

Source: https://www.redhat.com/en/blog/resize-lvm-simple