Test Login Flow on multiple browsers / devices

When testing the different login experiences I would like to test in different browsers / devices (iOS Simulator etc). I might have missed how this should be done (but I have been searching).

For example:

When running auth0 test login and choosing one of my web application clients. The CLI prompts me to open a browser. Here I would like to either choose browser, or just just the link in different browsers. But the link does only work in the browser opened by the CLI.

I’ve also tried to open the iOS simulator in Safari / Xcode but with no luck.
This is what I see in the iOS Simulator (as well as in any other browser)

What I need?

Any tips on how to test he login flows easily in different browsers / devices would be very much appreciated!

Another example:
Also tried things like
auth0 test login --tenant [TENANT_DOMAIN] [CLIENT_ID] --force --domain [DOMAIN] | xcrun simctl openurl Booted