A:AnswerI don't see why not. As long as the Google Nest WiFi router has two ethernet ports, you should not need a switch. Ethernet cable from the modem to WFii Nest router. Ethernet cable from the router to the computer. The only time you would need a switch is if you had more ethernet cables to connect to the router.
A:AnswerIt doesn't require any specific router, but using one with a 2.5G WAN port will let you get over gigabit speeds (when provisioned.) Sadly, these can be hard to find (Netgear does, of course have a few.)
A:AnswerYes.. However this isn’t a router/ modem combo and can’t connect devices to home network via WiFi. You will need to purchase independent router.