Interestingly enough this works
/ip firewall filter add action=accept chain=input comment="vpn server" in-interface=wgsrv
When above the wireguard port rule
/ip firewall filter add action=accept chain=input comment="vpn server" dst-port=13233 protocol=udp
But not with the subnet 192.168.222.0/24 or the host 192.168.222.201/24 addresses.