Hello Anonymous,
A couple of considerations:
1. two NATs in a row often do not work stably. However, both the Wingo router and the Google Nest have this switched on by default. The Nests need their own IP address management though, so that a mesh operation can work. Therefore, the suggestion to switch off NAT on the Wingo router (can also be called differently in the menu of the router) and to specify a fixed IP address. In this way, you switch off the actual router function. Leave the address assignment for the first Nest on dynamic ("NAT"). The second one must be set to "Bridge Mode".
2. on the cable side, you should connect a series as follows in your case:
A) Wingo
B) Nest (NAT)
C) Nest (Bridge)
If you want to connect additional Nest routers, you can either extend the row with further bridge modules or you can connect a switch (not a router!) between the first Nest and further Nest routers in bridge mode. In terms of cables, this would then be a star cabling.
In any case, this works stably for me in the star.