Ill preface by saying im far from a networking expert. Right now I just have a normal setup of modem->router where router has a 2.4ghz and 5ghz channel. Everything in my house connects to one of these through wifi other than my home server which is wired to the router. What I want instead is 2 seperate LANs. One LAN is completely normal and exactly what I have right now and the second will be connected to mullvad VPN. These 2 networks do not need to be able to talk to each other.

Is this possible?

I currently have a Netgear Nighthawk R8500 router which is not compatible with openwrt. A couple options ive thought that may work (could be wrong about all of them):

  1. Buy a network card and add it to my server and add an openwrt container in proxmox so I could have 2 different routers (existing router still up for normal stuff + openwrt container for VPN connected LAN)

  2. Buy a new router that supports openwrt and split into 2 VLANs in which case maybe I could install the VPN on one of the VLANs?

  3. pFsense as a proxmox container could potentially do this? I have not used pfSense much so im not sure if it could and even if it could I think it may be overkill?

I basically just want to know what you think the lightest and simplest way to get this done would be.