Gateway Virtual IP VPN setting question

I have an RV50X. I am configuring IPSec VPN Site to Site. I have done an million times sucessfully with LAN terminated. I see the host terminated option now. Is the Gateway virutal IP setting meant to provide SNAT to LAN?

For Ex, my RV50 LAN is 192.168.13.0/24.
But lets say this subnet is used everywhere (other sites), and I want to SNAT to avoid changing a bunch of equipments LAN address while being able to VPN to all the sites).

So does setting termination to host and setting gateway virtual ip to 192.168.10.2 basically set a SNAT from 10.2 to 13.X. I assume it does this by following port forwarding settings?

Please advise