How to isolate virtual machine traffic?

Question

Computer networks

There is a home network 192.168.1.0/24 and virtual machines on the host 192.168.1.3 (Proxmox). It is necessary that virtual machines have access to the Internet, but do not have access to the home network.

Answer 1

vlan or bridge and IP firewall

Answer 2

Vlan and legit traffic.

Answer 3

just put them in a separate bridge and close access with a firewall