How to add new guest pages on a panel?

So other than the default login & register page, I want to add other guest pages as well such as

email login page
sms login pages
lead gen pages (like simple calculator tools built with filament forms & infolist that people can access without being logged in)

but I'm not sure how do I add them. I saw that the Panel object has pages() method which accept an array but those seem to be for logged in pages