Did a reload of the daemon and log still says:
windows VM
qemu-system-x86_64: Issue while setting TUNSETSTEERINGEBPF: Invalid argument with fd: 50, prog_fd: -1
Debian VM
qemu-system-x86_64: Issue while setting TUNSETSTEERINGEBPF: Invalid argument with fd: 51, prog_fd: -1
I think we need to find out what process is causing the CPU/load spikes, as I think TUNSETSTEERINGEBPF is not relevant here. Especially as its occurring at startup when the VMs are working.
The database errors suggest the system is getting overloaded somehow.