But for example. If you are using WAN2 to establish S2S VPN, all traffic to a specific destination will be over S2S VPN established over WAN2.
I don't know if I was clear.
I am not a Cisco Meraki employee. My suggestions are based on documentation of Meraki best practices and day-to-day experience.
Please, if this post was useful, leave your kudos and mark it as solved.