Bridging port 1 isn't actually necessary to get a third party router to work. If you don't know how to solve an IP conflict between two routers, then bridging is probably something to consider. On a Google/Nest Wifi it's pretty straight forward. (Instructions) I've never had to bridge my Telus gateway to get a third party router, including a Google Wifi (older version, not the current Nest Wifi) to work.
A Google/Nest Wifi router is not going to redirect you to an Apple website. You have two different issues.